3 years ago

Tiara kept track of the number of good tennis serves that she made in a row.

1 answer:

5 0

First we put them in order....

9,11,12,15,16,17,17,19
Q1 (lower quartile) = (11 + 12) / 2 = 23/2 = 11.5
Q2 (median) = (15 + 16) / 2 = 31/2 = 15.5
Q3 (upper quartile) = (17 + 17)/2 = 34/2 = 17

so the upper quartile (Q3) = 17 <==

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