The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 85 inches, and a standard d
eviation of 14 inches. What is the likelihood that the mean annual precipitation during 49 randomly picked years will be less than 87.8 inches?
1 answer:
Answer:
Probability of choosing number = 0.9192
Step-by-step explanation:
Given:
New mean = 87.8
Mean = 85
Standard deviation = 14
Number picked = 49
Find:
Probability of choosing number
Computation:
Probability of choosing number = [New mean - Mean] / [Standard deviation / √Number picked]
Probability of choosing number <= [(87.8-85)]/[(14/7)]
Probability of choosing number = 0.9192
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