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In-s [12.5K]
3 years ago
11

Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 81st percentile.

Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

P(81)=56.16

Step-by-step explanation:

From the question we are told that:

Mean \mu=50

Standard Deviation \sigma=7

Percentile 81st

Generally Probability of 81st Percentile

 P(Z

Using Standard normal Table

 P(Z

Therefore the 81st percentile is given as

 P(81)=z*\sigma *\mu

 P(81)=0.88*7*50

 P(81)=56.16

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