Question
Reading Rates: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
Reading Rates: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.
(1a)What is the probability that a randomly selected sixth-grade student reads less than 100 words per minute?!!!You must draw a picture by shading the area in question under normal curve.!!!
(1b)What is the probability that a randomly selected sixth-grade student reads more than 140 words per minute. !!!You must draw a picture by shading the area in question under normal curve.!!!
(1c)What is the probability that a randomly selected sixth-grade student reads between 110 and 130 words per minute?You must draw a picture by shading the area in question under normal curve.
(1d)Would it be unusual for a sixth-grader to read more than 200 words per minute? Why?
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Discrete Mathematics Mathematical Reasoning And Proof With Puzzles, Patterns, And Games
Authors: Douglas E Ensley, J Winston Crawley
1st Edition
1118226534, 9781118226537
