Question

Where is the 1st quartile in this data set?

18, 4, 13, 19, 15, 23, 7, 10, 25, 3, 23

Answer 1

Put these data values in order from low to high first. Post here, please.

Answer 2

3 4 7 10 13 15 18 19 23 23 25

Answer 3

3 4 7 10 13 15 18 19 23 23 25

15 is the median or the second quartile.

The first quartile or Q1 is the median of this set:

3 4 7 10 13.

What do you think it is Post here, please.

Answer 4

7? Because it's the median of those numbers?

Answer 5

7 is correct for the first quartile.

Answer 6

There's an online box plot generator at this link:

http://www.alcula.com/calculators/statistics/box-plot/