Question

Ms Ratchett's math class averaged poorly on a test, so she gave them a retest. If all 30 students in the class scored 10 points higher on the retest, how would the MEAN of the retest scores differ from the MEAN of the scores on the first test?
A) The means would be the same.
B) The mean on the retest would be 3 points higher.
C) The mean on the retest would be 10 points higher.
D) The mean on the retest would be 13 points higher.

Answer 1

Hello?

Answer 2

@MrHirohito

Answer 3

@mathmale

Answer 4

Please Help Me!!!

Answer 5

Hello!

Answer 6

Hey!!!

Answer 7

:D

Answer 8

ok so how can i help you today! :D

Answer 9

I need the answer to the question above

Answer 10

:D

Answer 11

not giving a direct answer.
But il help you through it.

Answer 12

aww, ok. But it needs to be quick!

Answer 13

How quick?

Answer 14

Like maybe a minute quick!

Answer 15

Help?

Answer 16

To me B. Sounds right but i could be a little wrong...So...i mean im trying xD

Answer 17

ok!

Answer 18

No... it was c, :(

Answer 19

I got the question wrong

Answer 20

:'( sorry

Answer 21

i did the best i could....