Jed Thumper, who bats at number eight, had an average (mean) of 14 last year. So far this year he has had these scores.
20,0,14,19,26,12,14,23,7
What is Jed's average this season so far?
What are the total runs Jed would need to get in his next three innings to get his average up to 16?

Question

contestada

Respuesta :

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

joaobezerra joaobezerra · Answer 1 · 2022-08-25T17:38:39+02:00

Using the mean concept, it is found that:

He needs 19 runs on average over the next three innings to get his average up to 16.

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.

For this year, the 9 observations are:

20,0,14,19,26,12,14,23,7

Hence the mean is:

M = (20 + 0 + 14 + 19 + 26 + 12 + 14 + 23 + 7)/9 = 15.

Jed's average this season so far is of 15.

Considering the next three innings, for an average of 16, we have that:

16 = (20 + 0 + 14 + 19 + 26 + 12 + 14 + 23 + 7 + 3x)/12

135 + 3x = 192

x = (192 - 135)/3

x = 19.

He needs 19 runs on average over the next three innings to get his average up to 16.

More can be learned about the mean of a data-set at https://brainly.com/question/24628525

#SPJ1