**Course **

### MATH 225N Statistical Reasoning For The Health Sciences

**Instruction **

**Question:**A large company is … 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 … 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 … 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 … 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 (… 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

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