Question
On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 107 and a standard deviation
On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 107 and a standard deviation of 16. 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 125.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 Inter Quartile Range (IQR) for IQ scores.Round your answers to 2 decimal places.
Q1:
Q3:
IQR:
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