Question

Mr. Meyers gave both of his Science classes a 60-question exam over the water cycle. The number of questions that the students answered correctly are shown below.

Class A - 42, 44, 44, 45, 45, 46, 47, 48, 48, 48, 48, 49, 49, 50, 50, 50, 52, 54, 56, 56, 58

Class B - 27, 38, 40, 42, 45, 46, 46, 47, 47, 48, 51, 51, 51, 51, 52, 53, 54, 54, 54, 55, 56

Determine if the mean or the median is the best measure of center.

For class A, the

provides the best measure of center.

For class B, the

provides the best measure of center.

When comparing the classes to each other, the (mean

Answer 1

When comparing the classes to each other, the provides the best measure of center, and it indicates that students in class B typically answered questions correctly than students in class A.

Answer 2

basically inserting mean or median; will give a medal

Answer 3

@k12andstudyislandhelp do you know this?

Answer 4

aaaand theyre offline D:

Answer 5

what do you think???????

Answer 6

find the means and the medians and see how they compare

Answer 7

you know what the median is right - its the middle value when the scores are arranged in ascending order, which they are in this case.

Answer 8

yes

Answer 9

okay

Answer 10

there are 21 scores so the median will be the 11th value

Answer 11

Well i guess @welshfella can help you. I am not the best at math.

Answer 12

mean of class A- 49

Answer 13

yea

Answer 14

mean of class b- 45.5

Answer 15

I got 48 for mean for class B

Answer 16

Okay, let me recalculate

Answer 17

Yes, I got 48 now

Answer 18

ok so the mean of class A is > Class B
what do you get for the median for A and B?

Answer 19

Median of class A- 48
median of class B- 51

Answer 20

I'm assuming that the best measure of center for B is the mean?

Answer 21

right so theres a conflict there
and Class B has a few pretty low scores
so the mean gives a better picture of center

Answer 22

yes

Answer 23

- for B that is

Answer 24

but A is the same number so how can we tell?

Answer 25

what about class A?

Answer 26

I'm not sure

Answer 27

difference in median and mean for class A is only 1

to be honest I'm not sure but I think its median for Class A
as there are few low scores - also all the scores are nearer the center value in Class A when compared with class B

Answer 28

ahhh yes

Answer 29

yes I'm pretty sure its median for A

Answer 30

I had put the same thing earlier just the reverse owo

Answer 31

Thank you so much for the help

Answer 32

yw