Introduction To Probability And Statistics
15th Edition
ISBN: 9781337554428
Author: Mendenhall, William.
Publisher: Cengage Learning,
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Chapter 3.2, Problem 4E
To determine
To describe:
The pattern of the given
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Identify the outlier(s) in the scatterplot shown below
and write as an ordered pair in the form (a, b).
· 6.0
5.0
4.0
13.0
12.0
1.0
1.0
20
3.0 4.0
5.0
6.0
+ 2s
ŷ
ŷ - 2s
Directions: Some HEDU students went on a picnic. On the way back to school, some students didn't
feel so well, There were 200 students that attended. Using the data below create a cross-table analysis
to identify the likely source of the salmonella outbreak. Was it the potato salad, seafood salad, or
both? Explain. Read carefully!
Total # of Persons Who Ate Each Combination of Food Items and Did Not Get Sick
Ate Seafood
Salad
Did Not Eat
Seafood Salad
Ate Potato Salad
10
25
Did Not Eat Potato
10
18
Salad
Total # of Persons Who Ate Each Combination of Food Items and Who Later Developed
Salmonella
Ate Seafood
Salad
Did Not Eat
Seafood Salad
40
50
Ate Potato Salad
Did Not Eat Potato
Salad
The data set below on the left represents the annual rate of return (in percent) of eight randomly sampled bond
mutual funds, and the data set below on the right represents the annual rate of return (in percent) of eight
randomly sampled stock mutual funds. Use the information in the table below to complete parts (a) through (d)
Then complete part (e).
Question Help
What is the CV of the data set for bond mutual funds?
Bond mutual
(Type an integer or decimal rounded to three decimal places as needed)
Stock mutual O
funds
funds
What is the CV of the data set for stock mutual funds?
3.1
1.7
9.3
7.5
1.8
3.3
9.0
7.3
2.3
2.6
8.3
7.1
(Type an integer or decimal rounded to three decimal places as needed)
1.5
1.9
8.0
6.8
Based on the coefficient of variation,
V have more spread.
(e) In the table below, the data set on
on the right has the same students' hi
and the standard deviation. Draw a c
coefficient of variation for both data si
udents measured in inches, while the data set
ars. For each…
Chapter 3 Solutions
Introduction To Probability And Statistics
Ch. 3.1 - Side-by-Side Bar Charts Use side-by-side bar...Ch. 3.1 - Side-by-Side Bar Charts Use side-by-side bar...Ch. 3.1 - Prob. 3ECh. 3.1 - Prob. 4ECh. 3.1 - Stacked Bar Charts Use stacked bar charts to...Ch. 3.1 - Prob. 6ECh. 3.1 - Prob. 7ECh. 3.1 - Prob. 8ECh. 3.1 - Consumer SpendingThe following table shows...Ch. 3.1 - Prob. 10E
Ch. 3.1 - M&M’S The color distributions for two...Ch. 3.1 - Prob. 12ECh. 3.1 - Prob. 13ECh. 3.1 - Prob. 14ECh. 3.1 - Prob. 15ECh. 3.2 - Prob. 1ECh. 3.2 - Prob. 2ECh. 3.2 - Prob. 3ECh. 3.2 - Prob. 4ECh. 3.2 - Prob. 5ECh. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10ECh. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - Prob. 13ECh. 3.2 - Prob. 14ECh. 3.2 - Prob. 15ECh. 3.2 - Prob. 16ECh. 3.2 - Prob. 17ECh. 3.2 - Independent and Dependent Variables Identify which...Ch. 3.2 - Prob. 19ECh. 3.2 - Prob. 20ECh. 3.2 - Prob. 21ECh. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Prob. 24ECh. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Prob. 27ECh. 3.2 - Prob. 28ECh. 3 - Prob. 1RWYLCh. 3 - Prob. 2RWYLCh. 3 - Prob. 3RWYLCh. 3 - Prob. 4RWYLCh. 3 - Prob. 5RWYLCh. 3 - Prob. 6RWYLCh. 3 - Prob. 7RWYLCh. 3 - Prob. 8RWYLCh. 3 - Prob. 9RWYLCh. 3 - Prob. 10RWYLCh. 3 - Prob. 11RWYLCh. 3 - Prob. 12RWYLCh. 3 - Armspan and Height Leonardo da Vinci(14521519)...Ch. 3 - Prob. 14RWYLCh. 3 - Prob. 15RWYLCh. 3 - Prob. 16RWYLCh. 3 - Movie Money Does the amount of moneya movie makes...Ch. 3 - Prob. 18RWYLCh. 3 - Prob. 19RWYLCh. 3 - Prob. 20RWYLCh. 3 - Prob. 1CSCh. 3 - Prob. 2CSCh. 3 - Prob. 3CS
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- TRY IT : 5.105 Find the median of the data set: 8, 7, 5, 10, 9, 12.arrow_forwardUse this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 56. If you meet a U.S. citizen, what is the percent chance that the person is elderly? (Round to the nearest tenth of a percent.)arrow_forwardUse this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 58. If you meet five U.S. citizens, what is the percent chance that three are elderly? (Round to the nearest tenth of a percent)arrow_forward
- College Ranks As of this writing, U.S. News & World Report ranked national universities, including these results: Princeton (1), Harvard (2), Yale (3), and Columbia (4). The difference between Princeton and Harvard is the same as the difference between Yale and Columbia.arrow_forwardThanks!arrow_forwardlecture(12.3): A statistics class is made up 32% in person learners and has 24 in person learners. What is the number of students in the class?.arrow_forward
- Hand written fast..i'll ratearrow_forwardA school surveyed a group of students about whether they like backgammon and chess. They wll use this data to determine whether there is enough Interest for the school to compete In these games. Complete the table. Like Backgammon Like Chess Yes No Total Yes 7. 58 No 6. Total 5.arrow_forwardStudent grades on a chemistry exam were: 79, 77, 76, 82, 86, 50, 79, 81, 83, 99 Part (a) Construct a stem-and-leaf plot of the data. (Use the tens digit as the stem and the ones digit as the leaf. Enter your answers from smallest to largest, separated by spaces. Enter NONE for stems with no leaves.) 5 6 7 8 9 Are there any potential outliers? If so, which scores are they? Why do you consider them outliers? 1.There are no outliers in the data set because there are no large gaps in the stem-and-leaf plot. 2. The two outliers are 50 (because it lies 1.5 × IQR below the first quartile) and 99 (because it lies 1.5 × IQR above the upper quartile). 3.The only outlier is 99 because it is the largest value in the data set. 4.The only outlier is 50 because it lies 1.5 × IQR below the first quartile.arrow_forward
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