Mathematics, 27.03.2021 01:50 Ahhskii
On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 116 and a standard deviation of 14. 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 102.
Round your answer to 4 decimal places.
c. A school offers special services for all children in the bottom 3% 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 Inter Quartile Range (IQR) for IQ scores. Round your answers to 2 decimal places.
Q1:
Q3:
IQR:
Answers: 1
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