Jina has scored 76, 85, and 86 on her previous three tests. What score does she need on her next test so that her average (mean)
1 answer:
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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
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