If the temperatures over a 12-hour period in Phoenix Arizona were 72 83 91 90 103 102 98 96 93 82 80 and 72 what was the average temperature during this time period? (Round to the nearest degree)
A) 91
B) 72
C) 96
D) 89
E) 1062

Question

Quizplus · Accepted Answer

To find the average temperature, we need to add up all the temperatures and divide by the number of temperatures. 
72 + 83 + 91 + 90 + 103 + 102 + 98 + 96 + 93 + 82 + 80 + 72 = 1080 
There are 12 temperatures, so we divide 1080 by 12 to get the average temperature: 
1080/12 = 90 
Rounding to the nearest degree, the average temperature is 89. Therefore, the best choice is D.

If the Temperatures Over a 12-Hour Period in Phoenix Arizona