The total snowfall throughout the day is the expected value of the distribution.
The estimated total snowfall during the day is 30 inches
Start by calculating the average rate of snow collected on that day.
This gives
Divide 7.5 by 6
There are 24 hours in a day.
So, the total snowfall is:
This gives
Multiply
Hence, the estimated total snowfall during the day is 30 inches
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