On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 108 anda standard deviation of 15. 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 117.Round your answer to 4decimal places.c. A school offers special services for all children in the bottom 7% for IQ scores. What is the highest IQScore a child can have and still receive special services?Round your answer to 2 decimalplaces.d. Find the Inter Quartile Range (IQR) for IQ scores. Round your answers to 2 decimal places.Q1:Q3:IQR:

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Answered: On a planet far far away from Earth, IQ…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

The heights of women follow a normal distribution with a mean height of 63.7, and a standard deviation in height of 2.9 in. What height separates the tallest 10% of women from the rest. Round your result to 1 decimal place.
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An industrial designer wants to determine the average amount of time an adult spends building an easily installed toy. Using data from a random sample (in minutes), estimate the mean of the population from which the sample was selected with 95% probability.
Please answer B, C, & D.
All California 5th graders take a standardized test. The mean for the population of 5th graders is 68.9 and the standard deviation for the population is 10. What is the probability of randomly selecting a student who scored a. ≥ 85? b. less than or equal to 85? c. between 80 & 85? d. between 60 & 85?
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
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The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.

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