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

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Basic Math

On a planet far far away from Earth, IQ of the ruling species isnormally distributed with a mean of 105 and a standard deviation of14. Suppose one individual is randomly chosen. Let X = IQ of anindividual.

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

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

c. A school offers special services for all children in thebottom 4% for IQ scores. What is the highest IQ score a child canhave and still receive special services? Round your answer to 2decimal places.

d. Find the Inter Quartile Range (IQR) for IQ scores. Round youranswers to 2 decimal places.

Q1:

Q3:

IQR:

Answer & Explanation Solved by verified expert
4.4 Ratings (652 Votes)
Solutiona The distribution of X isb Find the probability that a randomly selected persons IQ isover 97We have to findNow using the zscore    See Answer
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