Answer:
To find the average (also known as the arithmetic mean) of the data values, we need to divide the sum of the values by the number of values. We are given the sum of 12 data values, which is 942. So:
Average = Sum of values / Number of values
Average = 942 / 12
We can simplify this by dividing both the numerator and denominator by their greatest common factor, which is 6:
Average = (942 ÷ 6) / (12 ÷ 6)
Average = 157 / 2
Average = 78.5
Therefore, the average of the 12 data values is 78.5.
Explanation: