shai9
contestada

what what is the mean of the cars
speeds

A.76 miles per hour
B.78 miles per hour
C.72 miles per hour
D.77.5 miles per hour

what what is the mean of the cars speedsA76 miles per hour B78 miles per hour C72 miles per hourD775 miles per hour class=

Respuesta :

Mean is the average. to find mean, you add all the numbers and divide it by how many numbers there are.

68 + 75 + 85 + 80 + 75 + 82 = 465

There are 6 numbers. That means you have to divide 465 by 6 to get the mean.

Divide:

465 / 6 = 77.5

The answer is D. 77.5

Hope this helped☺☺

2NS
The answer is D because when you add all the speeds (465) and then divide by 6 (total number of cars) you get 77.5.