Mathematics, 04.03.2020 02:29 keishlav5183

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 101 and a standard deviation of 17. Suppose one individual is randomly chosen. Let X = IQ of an individual.

a. What is the distribution of X? X ~ N(,)

b. Find the probability that a randomly selected person's IQ is over 97. Round your answer to 4 decimal places.

c. A school offers special services for all children in the bottom 7% for IQ scores. What is the highest IQ score a child can have and still receive special services? Round your answer to 2 decimal places.

d. Find the 25th and 75th percentiles (a. k.a Q1 and Q3) Round your answers to 2 decimal places.
Q1:
Q3:

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of

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