Question

Pls only answer if you know it:) The numbers are 19, 36, 24, 40, 17, 43, 30, 31, 37, 28, 45, 32, 16. What are the first quartile, median and third quartile to this data set?

a) 21.5, 31, 37
b) 21.5, 31, 38.5
c) 24, 31, 38.5
d) 24, 31, 37

Answer 1

The answer is B

Explanation:

You order them from least to greatest- 16, 17, 19, 24, 28, 30, 31, 32, 36, 37, 40, 43, 45.

Then you find the middle number or the median- 31

Then you go to the left of the medain and get the first quartile- 19, 24 (You have to find the mean of these two numbers- 21.5)

Then you go to the right of the medain and get the third quartile- 37, 40 (Again you must find the mean of these two numbers- 38.5)

Last you would put them in the order needed.

Hope this helps! :)

Answer 2

The answer is b

Explanation:

The reason being that I just did it myself on a lesson and got it right.