Question

find the average of following set of scores:72,81,and 93,69,75,87,63,84,78​

Answer 1

Answer:

78

Step-by-step explanation:

72+81+93+69+75+87+63+84+78÷9=702÷9=78

Answer 2

Average of given set of scores is 78.

Solution:

We need to determine average of following set of scores

72, 81, 93, 69, 75, 87, 63, 84, 78

Let’s first find sum of scores

Sum of scores = 72 + 81 + 93 + 69 + 75 + 87 + 63 + 84 + 78 = 702

Number of observation that is number of times score is noted = 9

Average = $\frac{Sum of scores}{number of observation}$

$= \frac{702}{9} = 78$  

Hence average of given set of scores is 78.