Question

Which of the following statements is correct?oA. The mean for waiter B is higher than the mean for waiter A.B. The mean for waiter A is the same as the mean for waiter B.oC. There are more tips shown for waiter A than for waiter B in the dotplots.The mean for waiter A is higher than the mean for waiter B.

Answer 1

1) Examining those dot plots we have

Waiter A, the following distribution:

4, 4, 6,6,6,6,8, 10,10,10,

Walter B

12, 14,14,16,16,16,16,18,18,20

2) The mean for waiter A, is given by the sum of their tips, divided by the number of it:

The mean for Waite A is $6 tip

So the mean for Waiter B is $16

3) So examining the options, the answer is :

The mean for waiter B is higher than the mean for waiter A.