Normal Probability-Reading Speed
The reading speed of second grade students in a large city
is approximately normal, with a mean of 91 wpm and standard deviation of 10
wpm.
(a) What is the probability a randomly selected student in
the city will read more than 95 wpm?
(b) What is the probability that a random sample of 11
second grade students from the city results in a mean reading speed of 95 wpm
(c) What is the probability that a random sample of 22
second grade students from the city results in a mean reading rate of 95 wpm





