7. The Welcher Adult Intelligence Test Scale is composed of a number of subtests. On one subtest, the raw scores have a mean of 35 and a standard deviation of 6. Assuming these raw scores form a normal distribution: a. What number represents the 65" percentile (what number separates the lower 65% of the distribution)? b. What number represents the 90th c. What is the probability of getting a raw score between 28 and 38? d. What is the probability of getting a raw score between 41 and 44? percentile?
7. The Welcher Adult Intelligence Test Scale is composed of a number of subtests. On one subtest, the raw scores have a mean of 35 and a standard deviation of 6. Assuming these raw scores form a normal distribution: a. What number represents the 65" percentile (what number separates the lower 65% of the distribution)? b. What number represents the 90th c. What is the probability of getting a raw score between 28 and 38? d. What is the probability of getting a raw score between 41 and 44? percentile?
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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