Question

The table on the right gives the annual income for eight families, in thousands of dollars.Find the mean and standard deviation for family incomo.Family A B C D E F G HIncome 47 42 44 45 43 45 48 46The mean of the data set is thousand dollars. (Round to three decimal places as needed)

Answer 1

We can compute the mean by;

and the standard deviation by;

So the mean of the data set is 45.

The standard deviation is 3.5