Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a standard deviation = 15 Find the probability that a randomly selected adult has an IQ less than 129.
The probability that a randomly selected adult has an IQ less than 129 is _______ (Type an integer or decimal rounded to four decimal places as needed)
Answer:
Given that,
Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard deviation σ=15.
i.e,
μ=105
σ=15
Find the probability that a randomly selected adult has an IQ less than 129:
P(X < 129):
=P[Z < 1.6]
=0.9452 (Using Z-table)
Therefore, the probability that a randomly selected adult has an IQ less than 129 is 0.9452.
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Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a standard deviation = 15
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