Find the probability that an individual picked at random

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Problem: Assume IQ scores in a certain population are normally distributed with a mean of 121 and a standard deviation of 13.

a. Find the probability that an individual picked at random from this population will have an IQ score between 110 and 129.

b. What proportion of the IQ scores are greater than 132?

c. Find the probability that an individual picked at random from this population will have an IQ score less than 112.

d. What proportion of the IQ scores are between 101 and 107?

e. Find the 90thh percentile of IQ scores.

f. Find the 5th percentile of IQ scores.

g. Find the 80th percentile of IQ scores.

h. Find the 10th percentile of IQ scores.

Reference no: EM132461829

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