Answer:
Minimum 13
First quartile 16
Step-by-step explanation:
Rewrite the sample 20 70 13 15 23 17 40 51 in ascending order:
13 15 17 20 23 40 51 70
The minimum is 13.
The median is the middle number
13 15 17 20 23 40 51 70
The middle number between 20 and 23 is
[tex]\dfrac{20+23}{2}=21.5[/tex]
Consider first half of the sample
13 15 17 20
The first quartile is the middle number of this part. The middle number of
13 15 17 20
is
[tex]\dfrac{15+17}{2}=16[/tex]
