Question

5. Consider the following two sets of incomes. Each income is in thousands of dollars

Answer 1

a:

Mean is found by adding all the numbers in a data set, then dividing by the amount of numbers added.

Group 1 Mean: 42

Group 2 Mean: 52

b:

The only extreme value in these data sets is 150. An extreme value makes a mean that makes no sense. It distorts it.

c:

No. Group 2 is not a good indication of the typical salary in the group. It has a value that is a lot higher than all the other salaries in the group.  

Answer 2

Mean is all of the numbers added up and then divided by the number of the numbers. so for example; 32+36+38+39+42+43+44+47+49+50 divided by 10 do that and then group 2, and if you already know how to do that then answer the questions