Answer:
mean = 24
Step-by-step explanation:
From inspection, there are 7 values.
The values are 12, 13, 15, 28, 28, 30, 42
To find the mean, sum the numbers: 12 + 13 + 15 + 28 + 28 + 30 + 42 = 168
Divide by the number of values: 168 ÷ 7 = 24
Therefore, mean = 24
