(Answered) A sample of 25 shoppers at a local pet store are asked how

Statistics

A sample of 25 shoppers at a local pet store are asked how many cats and dogs they have. The sample mean is calculated and then the deviation and deviation squared of each response is calculated. Below are the sums of eachcolumn. Using that information, calculate the standard deviation.

Survey Response , Deviation , Deviation^2

0 374

3. Below is the mean and standard deviation of annual doctor salaries broken down by specialty. Which one has the greatest relative spread (hint: coefficient of variation).

Specialty Mean (in thousands of dollars) St. Dev.(in thousands of dollars)

Cardiology 410 105

Oncology 330 90

Pediatrics 202 85

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