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 64 wpm and standard...

Part b please

Extracted 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 64 wpm and standard deviation 16 wpm. In USE SALT (a) What is the probability that a randomly selected typist's speed is at most 64 wpm? 0.5 (b) What is the probability that a randomly selected typist's speed is less than 64 wpm? 0.4751 (c) What is the probability that a randomly selected typist's speed is between 32 and 80 wpm? (Round your answer to four decimal places.) 0.8185