What is the first quartile of 12, 33, 15, 22, 29, 11, 17, 19, 16, 24, 38?

2 Answers
Jun 11, 2017

Q1=15

Explanation:

If you have a TI-84 calculator in hand:
You can follow these steps:
First put the numbers in order.
Then you press the stat button.
Then 1:Edit and go ahead and enter your values in order
After this press the stat button again and go to CALC
and hit 1:1-Var Stats press calculate.
Then scroll down until you see Q1.
That value is your answer :)

Jun 12, 2017

Q1=15

Explanation:

arrange the data set in ascending order

11x12x15x16x17x19x22x24x29x33x38

the median Q2 is the middle value of the
data set in ascending order

Q2=19

the lower quartile Q1 is the middle value of the
data set to the left of the median

Q1=15