Assume the random variable x is normally distributed with mean u = 90 and standard deviation o=5. Find the indicated probability
.
P(X<80) =
(Round to four decimal places as needed.)
1 answer:
<u>Given</u>:
Let the random variable x is normally distributed with mean
and 
We need to determine the probability of 
<u>Probability of </u>
<u>:</u>
The formula to determine the value of
is given by

Thus, we have;

Simplifying, we get;


Using the normal distribution table, the value of -2 is given by 0.0228

Thus, the value of
is 0.0228
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