# Question

Here are rates of return for a sample of recent on-site service contracts:

a. Find the average and standard deviation of these rates of return.

b. Write a paragraph discussing the level of risk (a cost) and average return (a benefit) involved in this area of business.

a. Find the average and standard deviation of these rates of return.

b. Write a paragraph discussing the level of risk (a cost) and average return (a benefit) involved in this area of business.

## Answer to relevant Questions

Consider the percentage change in the value of the dollar with respect to other currencies over a four-week period (Table 5.5.7). a. Find the standard deviation of these percentages. b. Interpret this standard deviation. In ...Consider the following productivity measures for a population of employees: a. Find the average productivity. b. Find and interpret the standard deviation of productivity. c. Find and interpret the coefficient of variation ...For the goods and services tax data of Table 5.5.10: a. Draw a box plot for each variable using the same scale. b. Based on these box plots, comment on the distribution of each variable. Using the data set from the previous problem concerning the ages and maintenance costs of five similar printing presses: a. Calculate the average maintenance cost of the presses. b. Calculate the standard deviation of the ...For the ages: Answer the parts of exercise 1. a. Find the range. b. Find the standard deviation. c. Find the coefficient of variation. d. Compare these three summary measures. What do they tell you about typical salaries in ...Post your question

0