The following temperatures (in °F) were recorded inside the building of a remote pumping station: 99, 87, 93, 90, and 96. The variance of these readings is closest to: (choose one)
(a) 11.7
(b) 22.5
(c) 31.1
(d) 38.6
 ANSWER.png)
Answer is (b) 22.5
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