Question

I If the game with 3 hits is considered to be recorded in error, it might be removed from the data set. If that happens a. What happens to the mean of the data set? b. What happens to the median of the data set? plot data- 2(0) 3(1) 4(0) 5(0) 6(0) 7(2) 8(4) 9(5) 10(4) 11(4) 12(0) 13(0) .please help​

Answer 1

Answer:

If the game with 3 hits is ignored the data becomes:

• 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11

a) The mean will increase.

With 3:

• (3 + 7*2 + 8*4 + 9*5 + 10*4 + 11*4)/20 = 8.9

Without 3:

• (7*2 + 8*4 + 9*5 + 10*4 + 11*4)/19 = 9.21

b) The median will remain as is.

• With 3 and without the median is same = 9