probability of randomly selecting someone with an IQ score that is (a) less than 80? (b) greater than 136? (c) between 95 and 110? (d) What IQ score th

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Add tables, inferences and conclusion if necessary
3. Normally distributed IQ scores have a mean of 100
and a standard deviation of 15. Use the standard z-
table to answer the ff questions: What is the
probability of randomly selecting someone with an
IQ score that is (a) less than 80? (b) greater than
136? (c) between 95 and 110? (d) What IQ score
corresponds to the 90th percentile? (e)the middle
30% of IQs fall between what two values? ,
Transcribed Image Text:3. Normally distributed IQ scores have a mean of 100 and a standard deviation of 15. Use the standard z- table to answer the ff questions: What is the probability of randomly selecting someone with an IQ score that is (a) less than 80? (b) greater than 136? (c) between 95 and 110? (d) What IQ score corresponds to the 90th percentile? (e)the middle 30% of IQs fall between what two values? ,
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