Description
find the value of x for which
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
Review
Review
Anonymous
This is great! Exactly what I wanted.
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
11 pages
Crime And Safety In Schools
School safety has always been an issue of concern especially in recent years where there For this paper my research questi ...
Crime And Safety In Schools
School safety has always been an issue of concern especially in recent years where there For this paper my research question of interest will be:
Statistics Question
1. Explain why, in a purely correlational study, one does not need to distinguish between independent and dependent variab ...
Statistics Question
1. Explain why, in a purely correlational study, one does not need to distinguish between independent and dependent variables2. Explain why establishing correlation does not suffice to demonstrate causation. What are some ways in which variables A and B may be correlated without A causing B?
Probability Theory and Statistics
X is the Uniform(−5, 5) random variable.
(a) Whatis fX(x)?
(b) WhatisFX(x)?
(c) What is E[X ...
Probability Theory and Statistics
X is the Uniform(−5, 5) random variable.
(a) Whatis fX(x)?
(b) WhatisFX(x)?
(c) What is E[X]?
(d) WhatisE[eX]?
(e) WhatisP(|X|<σX)?
The amount of time required for your computer to connect to a router is an exponential random
variable, with mean connection time of 3.0 seconds.
(a) What is the probability that a connection will be made in 5.0 seconds?
(b) If, after 5.0 seconds there is still no connection, what is the probability the connection will be
made in the following 5.0 seconds (so, within 10.0 seconds total)?
(c) Compare your answers to (a) and (b) and explain the observed behavior of this random variable.
The lifetimes of radioactive nuclei are independent and exponentially distributed. The half-life is
given by t1/2 = ln 2/λ, where t1/2 is the time such that the expected fraction of atoms remaining is 1/2.
(a) Iodine-131 is radioactive, with a half-life of 8.02 days. What is the probability that a single
atom of Iodine-131 is still un-decayed after 30 days?
(b) How long do you have to wait before 99.99% of a sample of Iodine-131 has decayed?
(c) Uranium-238 is radioactive, with a half-life of 4.468 × 109 years. Suppose you have an 0.1 mg
sample of Uranium-238. Let X be the number of nuclei that decay in one second in your
sample; calculate E[X]. What is P(X ≥ 2)?
Continuous random variable X has E[X] = 3 and Var(X) = 9. Find the parameters of X if
(a) X is an exponential random variable
(b) X is an Erlang random variable
(c) X is a continuous uniform random variable
If X is Exponential(λ) and W = X2, what is the PDF of W?
WCU Wk 3 Creating Truly Unbiased Sample and Survey Questions Discussion
Using survey data to calculate statistics can be extremely valuable, but you must also make sure that the sample and quest ...
WCU Wk 3 Creating Truly Unbiased Sample and Survey Questions Discussion
Using survey data to calculate statistics can be extremely valuable, but you must also make sure that the sample and questions are unbiased. Design a pair of questions that are related to the same healthcare issue: one that is unbiased and another that would result in a bias in one direction or the other.
Examples:
Do you think that the rate of type II diabetes diagnoses will increase over the next 10 years?
Given the large increase in childhood obesity in the United States, do you think that type II diabetes diagnoses will increase over the next 10 years?
Discuss why it is important to create a truly unbiased sample and survey questions.
Classmate #1Should people have the right to smoke?Since cigarettes are dangerous and have deadly side effects such as cancer, wouldn’t you agree that smoking should be controlled to save the lives of many?Discuss why creating a genuinely unbiased sample and survey question is essential.Biased survey questions use words and compositions in a way that influences a respondent’sanswer. Sometimes this is done intentionally, but most often, this occurs due to poorsurvey question design and evaluation. It is crucial to create a genuinely unbiased sample andsurvey question because Unbiased questions avoid leading words that may sway the responsespositively or negatively. They ensure your questions are fact-based, not opinion-based. Theytest only one thing at a time (Johnson, 2015).
classmate #2Do you think depression diagnoses have increased since the start of COVID-19?Due to the decline of economic status and increase in isolation during the COVID-19 pandemic, do you think that depression diagnoses have increased?The aim of questionnaires is “to gather valid, reliable, unbiased and discriminatory data from a representative sample of respondents” (McColl & et al, 2001). In order for responses to be honest and not skewed, questions in surveys need to be concise and vague in a certain topic. When a survey becomes extensive with a lot of background information, it can cause the respondent to think in the way the survey is leaning towards rather than their own genuine opinion. This can create error and bias within a range of sources and therefore can’t be used to get factual evidence and statistics (McColl & et al, 2001). Interpretations of long, informational questions can skew a respondent’s thought process rather than have them answer through their own experience/mindset.
Similar Content
i need help in algebra
-5r 4=7-r...
factoring polynomials
4p^2-20p+25...
Algebra Question
Algebra 1The Constant term of the product (x-7)(x+9) equals ____________________.Thank you for a...
PGU Finance Solutions Worksheet
MT217 Finance
Henry Moran
03/23/22 3:45 PM
=
Homework: Unit 6 Lab Assignment
Question 4, P6-39 (similar to)
Part 1 of 2
>
...
Nightingale College Introductory Statistics Questions Paper
Complete and submit the Hypothesis activity in the green "StatsLab" box on pages 531-533Introductory Statistics (d3bxy9euw...
Abbott Academy of Cosmetology Arts and Sciences Vector Visual Questions
Describe a vector in your own words
Explain a method to add vectors
Compare and contrast the component styles
Decompose a...
Related Tags
Book Guides
The Knife of Never Letting Go
by Patrick Ness
1984
by George Orwell
How to Win Friends and Influence People
by Dale Carnegie
The Underground Railroad
by Colson Whitehead
The Fault in Our Stars
by John Green
Macbeth
by William Shakespeare
Harry Potter and the Sorcerers Stone
by J. K. Rowling
Cat on a Hot Tin Roof
by Tennessee Williams
Narrative of the Life of Frederick Douglass
by Frederick Douglass
Get 24/7
Homework help
Our tutors provide high quality explanations & answers.
Post question
Most Popular Content
11 pages
Crime And Safety In Schools
School safety has always been an issue of concern especially in recent years where there For this paper my research questi ...
Crime And Safety In Schools
School safety has always been an issue of concern especially in recent years where there For this paper my research question of interest will be:
Statistics Question
1. Explain why, in a purely correlational study, one does not need to distinguish between independent and dependent variab ...
Statistics Question
1. Explain why, in a purely correlational study, one does not need to distinguish between independent and dependent variables2. Explain why establishing correlation does not suffice to demonstrate causation. What are some ways in which variables A and B may be correlated without A causing B?
Probability Theory and Statistics
X is the Uniform(−5, 5) random variable.
(a) Whatis fX(x)?
(b) WhatisFX(x)?
(c) What is E[X ...
Probability Theory and Statistics
X is the Uniform(−5, 5) random variable.
(a) Whatis fX(x)?
(b) WhatisFX(x)?
(c) What is E[X]?
(d) WhatisE[eX]?
(e) WhatisP(|X|<σX)?
The amount of time required for your computer to connect to a router is an exponential random
variable, with mean connection time of 3.0 seconds.
(a) What is the probability that a connection will be made in 5.0 seconds?
(b) If, after 5.0 seconds there is still no connection, what is the probability the connection will be
made in the following 5.0 seconds (so, within 10.0 seconds total)?
(c) Compare your answers to (a) and (b) and explain the observed behavior of this random variable.
The lifetimes of radioactive nuclei are independent and exponentially distributed. The half-life is
given by t1/2 = ln 2/λ, where t1/2 is the time such that the expected fraction of atoms remaining is 1/2.
(a) Iodine-131 is radioactive, with a half-life of 8.02 days. What is the probability that a single
atom of Iodine-131 is still un-decayed after 30 days?
(b) How long do you have to wait before 99.99% of a sample of Iodine-131 has decayed?
(c) Uranium-238 is radioactive, with a half-life of 4.468 × 109 years. Suppose you have an 0.1 mg
sample of Uranium-238. Let X be the number of nuclei that decay in one second in your
sample; calculate E[X]. What is P(X ≥ 2)?
Continuous random variable X has E[X] = 3 and Var(X) = 9. Find the parameters of X if
(a) X is an exponential random variable
(b) X is an Erlang random variable
(c) X is a continuous uniform random variable
If X is Exponential(λ) and W = X2, what is the PDF of W?
WCU Wk 3 Creating Truly Unbiased Sample and Survey Questions Discussion
Using survey data to calculate statistics can be extremely valuable, but you must also make sure that the sample and quest ...
WCU Wk 3 Creating Truly Unbiased Sample and Survey Questions Discussion
Using survey data to calculate statistics can be extremely valuable, but you must also make sure that the sample and questions are unbiased. Design a pair of questions that are related to the same healthcare issue: one that is unbiased and another that would result in a bias in one direction or the other.
Examples:
Do you think that the rate of type II diabetes diagnoses will increase over the next 10 years?
Given the large increase in childhood obesity in the United States, do you think that type II diabetes diagnoses will increase over the next 10 years?
Discuss why it is important to create a truly unbiased sample and survey questions.
Classmate #1Should people have the right to smoke?Since cigarettes are dangerous and have deadly side effects such as cancer, wouldn’t you agree that smoking should be controlled to save the lives of many?Discuss why creating a genuinely unbiased sample and survey question is essential.Biased survey questions use words and compositions in a way that influences a respondent’sanswer. Sometimes this is done intentionally, but most often, this occurs due to poorsurvey question design and evaluation. It is crucial to create a genuinely unbiased sample andsurvey question because Unbiased questions avoid leading words that may sway the responsespositively or negatively. They ensure your questions are fact-based, not opinion-based. Theytest only one thing at a time (Johnson, 2015).
classmate #2Do you think depression diagnoses have increased since the start of COVID-19?Due to the decline of economic status and increase in isolation during the COVID-19 pandemic, do you think that depression diagnoses have increased?The aim of questionnaires is “to gather valid, reliable, unbiased and discriminatory data from a representative sample of respondents” (McColl & et al, 2001). In order for responses to be honest and not skewed, questions in surveys need to be concise and vague in a certain topic. When a survey becomes extensive with a lot of background information, it can cause the respondent to think in the way the survey is leaning towards rather than their own genuine opinion. This can create error and bias within a range of sources and therefore can’t be used to get factual evidence and statistics (McColl & et al, 2001). Interpretations of long, informational questions can skew a respondent’s thought process rather than have them answer through their own experience/mindset.
Earn money selling
your Study Documents