Suppose that the distribution of typing speed in words per minute (wpm) for experienced typists using a new type of split keyboard can be approximated by a normal curve with mean 76 wpm and standard deviation 19 wpm. USE SALT (a) What is the probability that a randomly selected typist's speed is at most 76 wpm? (b) What is the probability that a randomly selected typist's speed is less than 76 wpm? (c) What is the probability that a randomly selected typist's speed is between 38 and 95 wpm? (Round your answer to four decimal places.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Suppose that the distribution of typing speed in words per minute (wpm) for experienced typists using a new type of split keyboard can be approximated
by a normal curve with mean 76 wpm and standard deviation 19 wpm.
USE SALT
(a) What is the probability that a randomly selected typist's speed is at most 76 wpm?
(b) What is the probability that a randomly selected typist's speed is less than 76 wpm?
(c) What is the probability that a randomly selected typist's speed is between 38 and 95 wpm? (Round your answer to four decimal places.)
Transcribed Image Text:Suppose that the distribution of typing speed in words per minute (wpm) for experienced typists using a new type of split keyboard can be approximated by a normal curve with mean 76 wpm and standard deviation 19 wpm. USE SALT (a) What is the probability that a randomly selected typist's speed is at most 76 wpm? (b) What is the probability that a randomly selected typist's speed is less than 76 wpm? (c) What is the probability that a randomly selected typist's speed is between 38 and 95 wpm? (Round your answer to four decimal places.)
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