The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per
Question:
(a) Draw a normal model that describes the reading speed of sixth-grade students.
(b)Find and interpret the probability that a randomly selected sixth-grade student reads less
than 100 words per minute.
(c)Find and interpret the probability that a randomly selected sixth-grade student reads more
than 140 words per minute.
(d)Find and interpret the probability that a randomly selected sixth-grade student reads between
110 and 130 words per minute. 0.3189
(e)Would it be unusual for a sixth grader to read more than 200 words per minute? Why?
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a b From Table V the area tothe left of 104 is 01492 so P...View the full answer
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Related Book For 
Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
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