MATH 225N Week 3 Assignment; Standard Deviation
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$25.00
| Term | Summer 2021 |
| Institution | MATH 225N Statistical Reasoning for the Health Sciences |
| Contributor | Patricia |
- Question: A large company is interested to know the variation in yearly sales for its salespeople. The dataset shown below is the yearly sales for a sample of 5 salespeople (expressed in thousands of dollars):
40, 60, 65, 70, 80
Find the variance for this dataset.
- Question: The data below are the monthly average high temperatures for November, December, January, and February in New York City from the Country Studies/Area Handbook Series sponsored by the U.S. Department of the Army between 1986 and 1998. What is the sample standard deviation?
54,42,40,40
- Question: Which of the following lists of data has the smallest standard deviation? Select the correct answer below:
- Question: Which of the data sets represented by the following histograms has the smallest standard deviation?
Select the correct answer below:
- Question: Which of the following lists of data has the largest standard deviation? Select the correct answer below:
- Question: Which of the following lists of data has the largest standard deviation? Select the correct answer below:
- Question: A company is interested to know the variation in yearly sales amount for all 5 salespeople in the company.
The dataset shown below is the sales amount sold by the 5 salespeople in the company (expressed in thousands of dollars):
40,60,65,70,80
- Question: The following data values represent the daily amount spent by a family during a 7 day summer vacation.
Find the sample standard deviation of this dataset:
$96, $125, $80, $110, $75, $100, $121
- Question: Given a sample variance of 6, what is the approximate sample standard deviation? Select the correct answer below:
- Question: The following dataset represents the pulse rate from a sample of football players ona football team.
Find the standard deviation of the dataset, and round your answer to one decimal place.
66, 70, 75, 80, 84
- Question: The following datavalues represent the daily amount spent by a family during a 7 day summer vacation.
Find the population standard deviation of this dataset:
$96, $125, $80, $110, $75, $100, $121
- Question: Find the sample variance of the following set of data:
6, 12, 11, 11.
- Question: Using the following set of data (the same as in the previous problem), find the sample standard deviation: 6, 12, 11, 11.
The sample variance of this data set is 7.3.
- Question: Find the sample variance of the following set of data:
5, 13, 9, 10, 5, 12
- Question: Using the following set of data (the same as in the previous problem), find the sample standard deviation: 5, 13, 9, 10, 5, 12.
The sample variance of this data set is 11.6.
- Question: Find the sample variance of the following set of data:
9, 12, 9, 14, 6
- Question: Using the following set of data (the same as in the previous problem), find the sample standard deviation:
9, 12, 9, 14, 6
- Question: Find the sample variance of the following set of data:
10, 3, 10, 3, 9.
- Question: Using the following set of data (the same as in the previous problem), find the sample standard deviation:
10, 3, 10, 3, 9.
| Instituition / Term | |
| Term | Summer 2021 |
| Institution | MATH 225N Statistical Reasoning for the Health Sciences |
| Contributor | Patricia |
