Question

The data point 6 is inserted into the data set 3, 3, 4, 5, 7, 7, and 13.

What affect does inserting this additional data point have on the mean and median of the data set?

The mean____, and the median_____

The mean...
A.) Decrease
B.) Doesn't change
C.) Increases

and the median...
A.)Decrease
B.) Doesn't change
C.) Increases

Answer 1

mean is the average

1. 3+3+4+5+5+7+7+13=42÷7=6

2. 3+3+4+5+5+7+7+13+6=48÷8=6

the mean doesn't change

the median is the middle

the middle of 3,3,4,5,5,7,7,13 is 5

the middle of 3,3,4,5,5,6,7,7,13 is 5

the median doesn't change

Answer 2

the mean B. doesnt change

the median A. decreaces

Explanation: