Question
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual.
part a
Give the distribution of X.
X ~_______(______,_________)
Part (b)
Find the probability that the person has an IQ greater than 135.
Write the probability statement.
P(_______)
What is the probability? (Round your answer to four decimal places.)
___________
part c
Write the probability statement.
P(X > x) =____________
What is the minimum IQ? (Round your answer to the nearest whole number.)
x =___________
part d
Write the probability statement.
P(x1 < X < x2) =____________
State the two values. (Round your answers to the nearest whole number.)
x1 = ________
x2 = ______________
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