4 simple Probability questions, Statistics Assignment Homework help

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1. The table shows the amount of recycling collected by three teams, rounded to the nearest pound, in each of three categories. Team Glass Plastic Paper 1 18 3 8 2 10 9 14 3 7 12 5 (a) What percent of the plastic collected by all the teams did Team 2 collect? (b) What percent of Team 1's collection was glass? (c) Make a multiple bar graph to represent the amount collected by the teams in each of the three categories. (d) Create a stacked bar graph to represent the amount collected by the teams in each of the three categories. Answer: 2. The data show prices of light bulbs at a home improvement store, rounded to the nearest dollar. 5, 2, 8, 10, 2, 20, 6, 15, 29, 6, 2, 2, 5, 1, 3 (a) Find the five-number summary of the data set. (b) Find the range and interquartile range (IQR) of the data set. (c) Draw a box plot of the data set. (d) Explain whether the data set has an outlier. If yes, draw a modified box plot. Answer: 3. The weights of apples in a shipment from Al's Orchards are normally distributed with a mean of 142 grams and a standard deviation of 9 grams. The weights of apples in a shipment from Zippy's Orchards are normally distributed with a mean of 165 grams and a standard deviation of 13 grams. A rotten apple has a mean of 156 grams. Was it more likely to come from Al's or from Zippy's? Use z-scores to explain. Show your work. Answer: 4. The table shows the average cost, in dollars, of a movie ticket in the United States for different years. Year 1948 1963 1974 1978 1985 1991 1997 2005 2010 Cost 0.36 0.86 1.89 2.34 3.55 4.21 4.59 6.41 7.89 Use technology to answer the following: (a) Find the equation of the least squares regression line. Round values of a and b to four decimal places. (b) Find r. Round to three decimal places. Interpret the r-value. (c) Find r 2 . Round to three decimal places. Tell what it means. (d) Use the equation of the least squares regression line to predict the average cost of a movie ticket in 1995.

Tutor Answer

glnhim
School: Rice University

very good. here your answer. let me know if you need anything else

1. The table shows the amount of recycling collected by three teams, rounded to the nearest pound, in each of
three categories.
Team

Glass

Plastic

Paper

1

18

3

8

2

10

9

14

3

7

12

5

(a) What percent of the plastic collected by all the teams did Team 2 collect?
It’s

9
3+9+12

= 37.5%

(b) What percent of Team 1's collection was glass?
It’s

18
18+3+8

= 62.069%

(c) Make a multiple bar graph to represent the amount collected by the teams in each of the three
categories.

(d) Create a stacked...

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Anonymous
Only issue was the guy's response time which was a bit long, which made me a bit anxious. Reached out to the help desk and they helped me out, turns out the tutors aren't all from US which meant there was a time difference. No issues on the quality.

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