Assume that IQ scores are no distributed with a mean 101.4 pts and a standard deviation of 10.7 pts. Let X be the IQ score of a randomly selected person. 1. Describe the probability distribution of X and state its parameters μ and σ: X N Select an answer (μ 2. Find the probability that the IQ score of a randomly selected person is σ= a. less than 93.4 pts. b. between 101.2 and 121.3 pts. c. more than 93.5 pts. (Round the answer to 4 decimal places) 3. Find the 25-th percentile for the IQ score. (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) pts (Round the answer to 1 decimal place)
Assume that IQ scores are no distributed with a mean 101.4 pts and a standard deviation of 10.7 pts. Let X be the IQ score of a randomly selected person. 1. Describe the probability distribution of X and state its parameters μ and σ: X N Select an answer (μ 2. Find the probability that the IQ score of a randomly selected person is σ= a. less than 93.4 pts. b. between 101.2 and 121.3 pts. c. more than 93.5 pts. (Round the answer to 4 decimal places) 3. Find the 25-th percentile for the IQ score. (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) pts (Round the answer to 1 decimal place)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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#5 Find the probability
Transcribed Image Text:Assume that IQ scores are normally distributed with a mean 101.4 pts and a standard deviation of 10.7 pts.
Let X be the IQ score of a randomly selected person.
1. Describe the probability distribution of X and state its parameters μ and σ:
X
Select an answer (μ
2. Find the probability that the IQ score of a randomly selected person is
σ
a. less than 93.4 pts.
b. between 101.2 and 121.3 pts.
c. more than 93.5 pts.
(Round the answer to 4 decimal places)
3. Find the 25-th percentile for the IQ score.
(Round the answer to 4 decimal places)
(Round the answer to 4 decimal places)
pts (Round the answer to 1 decimal place)
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