(Answered) Probability that a randomly selected typist

Statistics

Problem: The distribution of net typing rate in words per minute for experienced typists can be approximated by a normal curve with a mean of 94 wpm and a variance of 49 wpm. Please include formula and step by step calculations

Required:

Question 1: What is the probability that a randomly selected typist's net rate is between 81 and 101 wpm?

Question 2: Would you be surprised to find a typist in this population whose net rate exceeded 125 wpm? Explain.

Question 3: Suppose special training is made available to the slowest 10% of the typists. What typing speed would qualify an individual for this training?

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