Description
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.
Explanation & Answer
Thank you for the opportunity to help you with your question!
ANSTo determine the slope of a right traingle you need to put the length of the height of the length of the base........
Completion Status:
100%
Review
Review
Anonymous
I was struggling with this subject, and this helped me a ton!
Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4
24/7 Homework Help
Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!
Most Popular Content
MAT 10251 University of Technology Sydney Basic Probability Questions
Question 1 - Basic Probability (10 marks)According to a recent study, 9 out of 10 parents have helped their adult children ...
MAT 10251 University of Technology Sydney Basic Probability Questions
Question 1 - Basic Probability (10 marks)According to a recent study, 9 out of 10 parents have helped their adult children with some financial assistance. The following table shows the number of times parents have given their adult children financial assistance to buy a car and to pay the rent.Pay the rentYes NoBuy a car Yes 90 50No 10 150a. Develop a joint probability table. (2 marks)b. Using the marginal probabilities for ‘buy a car’ and ‘pay the rent’, are parents more likely to assist their adult children with buying a car or paying the rent? What is your interpretation of the marginal probabilities? (2 marks)c. If parents provided financial assistance to buy a car, what is the probability that the parents assisted with paying rent? (2 marks)d. If parents did not provide financial assistance to buy a car, what is the probability that the parents assisted with paying rent? (2 marks)e. What is the probability that parents provided financial assistance for their adult children by either helping to buy a car or pay rent? (2 marks)Question 2 – Normal Distribution (10 marks)The time needed to complete a final examination in a particular college course is normally distributed with a mean of 160 minutes and a standard deviation of 20 minutes. Answer the following questions:a. What is the probability of completing the exam in 120 minutes or less? (2 marks)b. What is the probability that a student will complete the exam in more than 120 minutes but less than 150 minutes? (2 marks)c. What is the probability that a student will complete the exam in more than 100 minutes but less than 170 minutes? (2 marks)d. Assume that the class has 120 students and that the examination period is 180 minutes in length. How many students do you expect will be unable to complete the examination in the allotted time? (4 marks)Question 3 – Sampling Distribution (10 marks)The Economics Policy Institute periodically issues reports on wages of entry-level workers. The Institute reported that entry-level wages for male college graduates were $43.36 per hour, and for female college graduates were $37.60 per hour. Assume the standard deviation for male graduates is $2.30 and for female graduates is $2.05.a. What is the probability that a sample of 50 male graduates will provide a sample mean within $0.50 of the population mean, $43.36? (3 marks)b. What is the probability that a sample of 50 female graduates will provide a sample mean within $0.50 of the population mean, $37.60? (3 marks)c. In which of the preceding two cases, part (a) or part (b), do we have a higher probability of obtaining a sample estimate within $0.50 of the population mean? Why? (2 marks)d. What is the probability that a sample of 120 female graduates will provide a sample mean more than $0.30 bel
Assignment: Evaluating Significance of Findings
For this Assignment, you will examine statistical significance and meaningfulness based on sample statements.To prepare fo ...
Assignment: Evaluating Significance of Findings
For this Assignment, you will examine statistical significance and meaningfulness based on sample statements.To prepare for this Assignment:Review the Week 5 Scenarios found in this week’s Learning Resources and select two of the four scenarios for this Assignment. For additional support, review the Skill Builder: Evaluating P Values and the Skill Builder: Statistical Power, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane.For this Assignment:Critically evaluate the two scenarios you selected based upon the following points:Critically evaluate the sample size.Critically evaluate the statements for meaningfulness.Critically evaluate the statements for statistical significance.Based on your evaluation, provide an explanation of the implications for social change.
Inwood College Regression Equation for Predicting Memory Scores Questions
I would like step-by-step solutions if you can, just answers are fine. I dropped the practice questions file. Thank you fo ...
Inwood College Regression Equation for Predicting Memory Scores Questions
I would like step-by-step solutions if you can, just answers are fine. I dropped the practice questions file. Thank you for your help and time, I really appreciate it.
Multiplying Probabilities
The spinner below is spun twice. What is the probability that it will land on a red and green? Round to the nearest tenth ...
Multiplying Probabilities
The spinner below is spun twice. What is the probability that it will land on a red and green? Round to the nearest tenth of a percent.3.1%37.5%2.8%1.6%Brittany’s cat just had kittens. There are 3 white kittens, 2 black kittens, and one tabby cat. If she gives two cats to her cousin, what is the probability that one will be white and the other will be black?66.7%40%30%10%There are 52 teams in the NFL. The Seattle Seahawks won the Super Bowl last year. Which expression shows the probability that they will also win the next two years?A. B. C. D. The distribution of letters in a Scrabble game are given below. If 7 pieces are taken from the 100 piece set and Y is considered a consonant, what is the probability that the first two pieces chosen are vowels? Round to the nearest tenth of a percent.17.6%17.4%17.2%7%A magician is doing a magic trick with a standard deck of cards. He asks Melissa to draw a card at random and then replace it. Then he asks Brandon to draw a card from the deck. What is the probability that both Melissa and Brandon draw a spade? Round to the nearest tenth of a percent.6.3%5.9%0.6%0.5%The distribution of letters in a Scrabble game are given below. If 7 pieces are taken from the 100 piece set, what is the probability that the first two pieces chosen are “S” and the third is an “E”?A. B. C. D. Each of the spinners below is spun once. What is the probability that both spinners land on a 3?1/97/121/122/7Each of the spinners below is spun once and then added. What is the probability that the sum is odd?1/23/71/61/12A box of ice pops has 3 blueberry, 3 cherry, 2 lemon, and 2 orange ice pops. Mark, Brad, and David all take ice pops out of the box randomly. What is the probability that Mark and Brad will get cherry and David will get lemon?1/1209/5001/603/225There are 10 contestants are competing on a singing show. 6 of them are females and 4 are males. Each week a contestant is voted off of the show. What is the probability that 3 females are voted off in the first 3 weeks?3/53/2527/1251/6
Probability Theory and Statistics
ENGR 3341 Probability Theory and Statistics Prof. Gelb
Homework #3Suggested “warm-up” problems from textbook (answers ...
Probability Theory and Statistics
ENGR 3341 Probability Theory and Statistics Prof. Gelb
Homework #3Suggested “warm-up” problems from textbook (answers on eLearning):
Section 3.1.6: problems 1, 3, 6
Section 3.3: problems 1, 5, 10, 11
Problems to be turned in:
1. The random variable Y has PMF:
(a) Determine c such that this PMF is normalized.
(b) What is P(Y ≤ 1)?
(c) WhatistheexpectedvalueofY?
c(1/2)y
PY(y)= 0
y=0,1,2,3
otherwise
Bags of “Original Skittles” candies come in five different flavors: Grape, Lemon, Green Apple, Orange
and Strawberry. The flavors are equiprobable; if you take a candy randomly from a bag the probability of
getting a particular flavor is 1/5, independent of other “draws”.
(a) What’s the probability of choosing three Skittles and getting three of the same flavor?
(b) What’s the probability of choosing five Skittles and getting one of each flavor?
(c) What’s the probability that in a bag of 30 candies there aren’t any Lemon ones?
(d) if you draw a sequence of candies from the bag, what’s the probability that you’ll get at least two
Lemon ones before you get your first Grape one?
Two teams A and B play a best-of-three games series; the series ends as soon as one team has won two
times. Assume the teams are equally matched, so the probability of A winning is 0.5 in every game.
There are no draws. Find:
(a) The PMF of N, the total number of games played.
(b) The expected value of N.
(c) The PMF of W , the number of times team A wins.
(d) The PMF of X, how many games the winner leads by at the end of the series.
Suppose X ∼Geometric(0.3).
(a) Calculate P(X ≤ 3).
(b) Calculate E[X]
(c) Calculate P(X ≥ 4|X ≥ 2)
SupposeY ∼Binomial(6,0.5)
(a) Calculate P(Y ≥ 3).
(b) Calculate μY
(c) Calculate P(Y ≥ μY )
Customers arrive at a bank randomly, but at an average rate of 1 per 10 minutes; the number that arrive in
t minutes is a Poisson random variable C with λ = 0.1t.
(a) What is the probability that exactly three customers will arrive in a given 5 minute interval?
(b) What is the probability that at least one customer arrives in a given 10 minute interval?
(c) What is the mean number of customers that will arrive between 8 AM and 9:30 AM?
1
Similar Content
Grossmont College Salaried Position Mathematics Exercise
Question 1: After a lengthy interview process you have two job offers. The first offer pays an hourly wage of $20.75 per h...
Introduction to Math Proof
Question 1:Prove that 1 + 2 + 4 + ⋯ + 2^n-1 = 2^n − 1 for all natural numbers n . Question 2:Prove that 1+1/2+1/...
SXU Calculus Question
Writing Prompts
• Pick one of the following functions to work with:
f(x) = cos(x)
1
f(x)
O
O
-
1+x²
f(x) = 2x + 1
• F...
MATH 191 Calculis Questionnaire
1 T-Mobile
12:12 PM
3%
АА
ohm.lumenlearning.com
T
IUTTU VVUL\
VU
Score: 0/3
0/3 answered
Question 1
>
0/1 pt 52 397 0 De...
Statistics Sales and Advertising Questions
Post #7
7. The money spent on an advertising budget (in thousands of dollars) should be able to be used to predict sales (...
look at the question below.
Rewrite in simplest rational exponent form √x • 4√x. Show each step of your process...
Related Tags
Book Guides
Death Of A Salesmen
by Arthur Miller
Sharp Objects
by Gillian Flynn
Girl in Translation
by Jean Kwok
Fences
by August Wilson
Death on the Nile
by Agatha Christie
The Sun Is Also a Star
by Nicola Yoon
Calypso
by David Sedaris
Sounds Like Titanic
by Jessica Chiccehito Hindman
A Separate Peace
by John Knowles
Get 24/7
Homework help
Our tutors provide high quality explanations & answers.
Post question
Most Popular Content
MAT 10251 University of Technology Sydney Basic Probability Questions
Question 1 - Basic Probability (10 marks)According to a recent study, 9 out of 10 parents have helped their adult children ...
MAT 10251 University of Technology Sydney Basic Probability Questions
Question 1 - Basic Probability (10 marks)According to a recent study, 9 out of 10 parents have helped their adult children with some financial assistance. The following table shows the number of times parents have given their adult children financial assistance to buy a car and to pay the rent.Pay the rentYes NoBuy a car Yes 90 50No 10 150a. Develop a joint probability table. (2 marks)b. Using the marginal probabilities for ‘buy a car’ and ‘pay the rent’, are parents more likely to assist their adult children with buying a car or paying the rent? What is your interpretation of the marginal probabilities? (2 marks)c. If parents provided financial assistance to buy a car, what is the probability that the parents assisted with paying rent? (2 marks)d. If parents did not provide financial assistance to buy a car, what is the probability that the parents assisted with paying rent? (2 marks)e. What is the probability that parents provided financial assistance for their adult children by either helping to buy a car or pay rent? (2 marks)Question 2 – Normal Distribution (10 marks)The time needed to complete a final examination in a particular college course is normally distributed with a mean of 160 minutes and a standard deviation of 20 minutes. Answer the following questions:a. What is the probability of completing the exam in 120 minutes or less? (2 marks)b. What is the probability that a student will complete the exam in more than 120 minutes but less than 150 minutes? (2 marks)c. What is the probability that a student will complete the exam in more than 100 minutes but less than 170 minutes? (2 marks)d. Assume that the class has 120 students and that the examination period is 180 minutes in length. How many students do you expect will be unable to complete the examination in the allotted time? (4 marks)Question 3 – Sampling Distribution (10 marks)The Economics Policy Institute periodically issues reports on wages of entry-level workers. The Institute reported that entry-level wages for male college graduates were $43.36 per hour, and for female college graduates were $37.60 per hour. Assume the standard deviation for male graduates is $2.30 and for female graduates is $2.05.a. What is the probability that a sample of 50 male graduates will provide a sample mean within $0.50 of the population mean, $43.36? (3 marks)b. What is the probability that a sample of 50 female graduates will provide a sample mean within $0.50 of the population mean, $37.60? (3 marks)c. In which of the preceding two cases, part (a) or part (b), do we have a higher probability of obtaining a sample estimate within $0.50 of the population mean? Why? (2 marks)d. What is the probability that a sample of 120 female graduates will provide a sample mean more than $0.30 bel
Assignment: Evaluating Significance of Findings
For this Assignment, you will examine statistical significance and meaningfulness based on sample statements.To prepare fo ...
Assignment: Evaluating Significance of Findings
For this Assignment, you will examine statistical significance and meaningfulness based on sample statements.To prepare for this Assignment:Review the Week 5 Scenarios found in this week’s Learning Resources and select two of the four scenarios for this Assignment. For additional support, review the Skill Builder: Evaluating P Values and the Skill Builder: Statistical Power, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane.For this Assignment:Critically evaluate the two scenarios you selected based upon the following points:Critically evaluate the sample size.Critically evaluate the statements for meaningfulness.Critically evaluate the statements for statistical significance.Based on your evaluation, provide an explanation of the implications for social change.
Inwood College Regression Equation for Predicting Memory Scores Questions
I would like step-by-step solutions if you can, just answers are fine. I dropped the practice questions file. Thank you fo ...
Inwood College Regression Equation for Predicting Memory Scores Questions
I would like step-by-step solutions if you can, just answers are fine. I dropped the practice questions file. Thank you for your help and time, I really appreciate it.
Multiplying Probabilities
The spinner below is spun twice. What is the probability that it will land on a red and green? Round to the nearest tenth ...
Multiplying Probabilities
The spinner below is spun twice. What is the probability that it will land on a red and green? Round to the nearest tenth of a percent.3.1%37.5%2.8%1.6%Brittany’s cat just had kittens. There are 3 white kittens, 2 black kittens, and one tabby cat. If she gives two cats to her cousin, what is the probability that one will be white and the other will be black?66.7%40%30%10%There are 52 teams in the NFL. The Seattle Seahawks won the Super Bowl last year. Which expression shows the probability that they will also win the next two years?A. B. C. D. The distribution of letters in a Scrabble game are given below. If 7 pieces are taken from the 100 piece set and Y is considered a consonant, what is the probability that the first two pieces chosen are vowels? Round to the nearest tenth of a percent.17.6%17.4%17.2%7%A magician is doing a magic trick with a standard deck of cards. He asks Melissa to draw a card at random and then replace it. Then he asks Brandon to draw a card from the deck. What is the probability that both Melissa and Brandon draw a spade? Round to the nearest tenth of a percent.6.3%5.9%0.6%0.5%The distribution of letters in a Scrabble game are given below. If 7 pieces are taken from the 100 piece set, what is the probability that the first two pieces chosen are “S” and the third is an “E”?A. B. C. D. Each of the spinners below is spun once. What is the probability that both spinners land on a 3?1/97/121/122/7Each of the spinners below is spun once and then added. What is the probability that the sum is odd?1/23/71/61/12A box of ice pops has 3 blueberry, 3 cherry, 2 lemon, and 2 orange ice pops. Mark, Brad, and David all take ice pops out of the box randomly. What is the probability that Mark and Brad will get cherry and David will get lemon?1/1209/5001/603/225There are 10 contestants are competing on a singing show. 6 of them are females and 4 are males. Each week a contestant is voted off of the show. What is the probability that 3 females are voted off in the first 3 weeks?3/53/2527/1251/6
Probability Theory and Statistics
ENGR 3341 Probability Theory and Statistics Prof. Gelb
Homework #3Suggested “warm-up” problems from textbook (answers ...
Probability Theory and Statistics
ENGR 3341 Probability Theory and Statistics Prof. Gelb
Homework #3Suggested “warm-up” problems from textbook (answers on eLearning):
Section 3.1.6: problems 1, 3, 6
Section 3.3: problems 1, 5, 10, 11
Problems to be turned in:
1. The random variable Y has PMF:
(a) Determine c such that this PMF is normalized.
(b) What is P(Y ≤ 1)?
(c) WhatistheexpectedvalueofY?
c(1/2)y
PY(y)= 0
y=0,1,2,3
otherwise
Bags of “Original Skittles” candies come in five different flavors: Grape, Lemon, Green Apple, Orange
and Strawberry. The flavors are equiprobable; if you take a candy randomly from a bag the probability of
getting a particular flavor is 1/5, independent of other “draws”.
(a) What’s the probability of choosing three Skittles and getting three of the same flavor?
(b) What’s the probability of choosing five Skittles and getting one of each flavor?
(c) What’s the probability that in a bag of 30 candies there aren’t any Lemon ones?
(d) if you draw a sequence of candies from the bag, what’s the probability that you’ll get at least two
Lemon ones before you get your first Grape one?
Two teams A and B play a best-of-three games series; the series ends as soon as one team has won two
times. Assume the teams are equally matched, so the probability of A winning is 0.5 in every game.
There are no draws. Find:
(a) The PMF of N, the total number of games played.
(b) The expected value of N.
(c) The PMF of W , the number of times team A wins.
(d) The PMF of X, how many games the winner leads by at the end of the series.
Suppose X ∼Geometric(0.3).
(a) Calculate P(X ≤ 3).
(b) Calculate E[X]
(c) Calculate P(X ≥ 4|X ≥ 2)
SupposeY ∼Binomial(6,0.5)
(a) Calculate P(Y ≥ 3).
(b) Calculate μY
(c) Calculate P(Y ≥ μY )
Customers arrive at a bank randomly, but at an average rate of 1 per 10 minutes; the number that arrive in
t minutes is a Poisson random variable C with λ = 0.1t.
(a) What is the probability that exactly three customers will arrive in a given 5 minute interval?
(b) What is the probability that at least one customer arrives in a given 10 minute interval?
(c) What is the mean number of customers that will arrive between 8 AM and 9:30 AM?
1
Earn money selling
your Study Documents