Question

The data below represent the ages of people working at a store.

17, 25, 18, 24, 18, 22, 30, 21, 18, 17, 19

What is the first quartile of these ages?

A.
24

B.
21

C.
19

D.
18

Answer 1

Have you considered sorting them in ascending order and dividing them up into four, equal groups?

Answer 2

The first quartile is D.) 18

Answer 3

you can enter the #s into L1 when you hit stat edit on a graphing calculator
After entering them, you hit stat, scroll over to calc via arrow buttons, and hit 1 Var Stat
hit enter, and you get a set of data. Scrolling down, in Q1 (meaning Quartile 1), the data is 18

Answer 4

17,17,18,18,18,19,21,22,24,25,30
the median (Q2) = 19
17,17,18,18,18 -- Q1 = 18
21,22,24,25,30 -- Q3 = 24
end points are 17 and 30
ANSWER : The first Quartile is 18
Just like @Aki-chan said.

Answer 5

@texaschic101 how this question still open