There are 1,345 students in the school. The entire school is going on a field trip and needs to fit on buses that hold 55 studen
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Answer: 0.9996
Step-by-step explanation:
Given : The monthly electrical utility bills of all customers for the Far East Power and Light Company are known to be normally distributed with a mean
Standard deviation :
Sample size : n=100
Let X be the random variable that represents the electricity utility bill for a randomly selected month .
z-score :
For X = $75.00
Now, the probability that the average bill for those sampled will exceed $75.00 will be :-
Hence, the probability that the average bill for those sampled will exceed $75.00 =0.9996