The scores for a statistics test are as follows: $\begin{array} { l l l l l l l l l l } 75 & 76 & 62 & 77 & 70 & 92 & 61 & 85 & 95 & 89 \end{array}$
$\begin{array} { l l l l l l l l l l } 79 & 67 & 50 & 60 & 85 & 65 & 85 & 73 & 18 & 82 \end{array}$
Compute the mean score.
A) 63.25
B) 75
C) 75.50
D) 72.30

Question

The scores for a statistics test are as follows: $\begin{array} { l l l l l l l l l l } 75 & 76 & 62 & 77 & 70 & 92 & 61 & 85 & 95 & 89 \end{array}$
$\begin{array} { l l l l l l l l l l } 79 & 67 & 50 & 60 & 85 & 65 & 85 & 73 & 18 & 82 \end{array}$ 
Compute the mean score.
A) 63.25
B) 75
C) 75.50
D) 72.30

Quizplus · Accepted Answer

To find the mean, sum all the scores and divide by the number of scores. The sum is 1446 and there are 20 scores, so the mean is 1446/20 = 72.30.

The Scores for a Statistics Test Are as Follows 75766277709261859589\begin{array} { l l l l l l l l l l } 75 & 76 & 62 & 77 & 70 & 92 & 61 & 85 & 95 & 89 \end{array}75​76​62​77​70​92​61​85​95​89​

The Scores for a Statistics Test Are as Follows $\begin{array} { l l l l l l l l l l } 75 & 76 & 62 & 77 & 70 & 92 & 61 & 85 & 95 & 89 \end{array}$