The reading speed of sixth - grade students is approximately normal, with a mean speed of 125 words per minute and a standard deviation of 24 words per minute. A school psychologist wants to determine reading rates for unusual students (both slow and fast). Determine the reading rates of the middle 95% of all sixth - grade students. What are cutoff points for unusual readers? only 78 words per minute 52 and 182 words per minute 78 and 172 words per minute only 172 words per minut
The reading speed of sixth - grade students is approximately normal, with a mean speed of 125 words per minute and a standard deviation of 24 words per minute. A school psychologist wants to determine reading rates for unusual students (both slow and fast). Determine the reading rates of the middle 95% of all sixth - grade students. What are cutoff points for unusual readers? only 78 words per minute 52 and 182 words per minute 78 and 172 words per minute only 172 words per minut
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 7PPS
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The reading speed of sixth - grade students is approximately normal, with a
A school psychologist wants to determine reading rates for unusual students (both slow and fast). Determine the reading rates of the middle 95% of all sixth - grade students. What are cutoff points for unusual readers?
|
only 78 words per minute |
|
52 and 182 words per minute |
|
78 and 172 words per minute |
|
only 172 words per minute |
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