Question

Find the mean of the data.



A.
25

B.
27

C.
27.5

D.
30

Answer 1

do not give the final answer please

Answer 2

15, 15, 20, 25, 25, 30, 30, 30, 35, 45.

Answer 3

Im sorry but i dont know anything about this.

Answer 4

Okay, wait a sec.

Answer 5

15, 15, 20, 25, 25, (?), 30, 30, 30, 35, 45.
We have to figure out the number that goes in the middle.

Answer 6

Ok so it would be 25 and 30 :I

Answer 7

No.
Forget about others and just look at these guys.
25, (?), 30
What goes in the (?)

Answer 8

Oh 25 goes there maybe because there are 3 30's and 2 25's

Answer 9

A number that is right between 25 and 30.
25 + 30 = 55
55/2= ?

Answer 10

27.5

Answer 11

@Kamizamurai : "15, 15, 20, 25, 25, (?), 30, 30, 30, 35, 45.
We have to figure out the number that goes in the middle" is not correct. This is how you find the MEDIAN. The procedure for finding the mean is different. What is it?

Answer 12

Explain the process of finding the mean, please.

Answer 13

Nothing to be sorry about ... provided that you can explain how to find the mean of your data.

Answer 14

so was my answer right.

Answer 15

Great. Now would you please find the MEAN of your data. Perhaps you and ajanijones could work together and compare your answers.

Next, work with ajanijones to find the MEDIAN.

Answer 16

I got 54

Answer 17

OK, you two: remember that you are now communicating with each other. Once you've gotten the same answer for the MEAN, let me know. Until then, I'm staying out of this discussion.

Answer 18

Ok.

Answer 19

Well I got a different answer.
Firs add all this up.
15 + 15 + 20 + 25 + 25 + 30 + 30 + 30 + 35 + 45
What did you get ?

Answer 20

Now I got 27.

Answer 21

Great. Work together until you find out why your answers are different.

Answer 22

I added them wrong the first time.

Answer 23

Oh, okay.
@mathmale can we finish the disscussion ?

Answer 24

Have you arrived at agreement regarding the mean? This means both of you got the same answer. If so, what is the mean?

Answer 25

so did I get the right answer.

Answer 26

The mean is 27 right. cause thats what i got.

Answer 27

Yea, I think it's 27 too.

Answer 28

Fine. I trust you. Now compare your MEAN with the four possible answers.

Answer 29

The final answer is ? @ajanijones

Answer 30

I'm waiting for you to tell me. You two got the same answer, right? What was it? Does that match any of choices a, b, c or d?

Answer 31

So we are right then.

Answer 32

Yea the answer is B(27).

Answer 33

Right. I'm really proud of your ability to work together to find the correct solution. I'd give each of you a medal if I could.

Answer 34

If you have the time and the interest, see whether you two can come up with the same MEDIAN for this same data set.

Answer 35

I have time, lol.

Answer 36

How many data points do you have?
Have you arranged the data points in ascending order?

Answer 37

@ajanijones is offline.

Answer 38

Funny, anyway thank you @mathmale

Answer 39

You're welcome. Thanks for your persistence and for collaborating with ajanijones. See you again!