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 17. Suppose one individual is randomly chosen. Let X = IQ of an...

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 17. Suppose one individual is randomly chosen. Let X = IQ of an individual.




b. Find the probability that a randomly selected person's IQ is over 94.Round your answer to 4 decimal places.



c. A school offers special services for all children in the bottom 4% 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: