Question

find the mean value of the following 5 test scores:70, 95, 85, 70, 60
a 75
b 70
c 76
d 85

Explanation:

Step1: Sum up the test scores

$$70 + 95 + 85 + 70 + 60=380$$

Step2: Divide the sum by the number of scores

The number of scores is \(n = 5\). So the mean \(\bar{x}=\frac{380}{5}=76\)

Answer:

C. 76