Show what you entered into your graphing calculator i e normalcdf 1 1 2 3 0 1 Write your answer in a sentence in the context if

Question

Show what you entered into your graphing calculator i e normalcdf 1 1 2 3 0 1 Write your answer in a sentence in the context if a problem 1 A study found that college students worked a mean of 22 hours per week with a standard deviation of 9 hours Assume the work times are normally distributed Find the probability that a randomly selected college student works less than 4 hours per week 2 A survey shows that people spend an average of 43 minutes at the grocery store with a standard deviation of 12 minutes The lengths of time spent at the store are normally distributed What is the probability that a randomly selected shopper spends between 22 and 52 minutes at the store 3 The average speed of cars traveling on a highway is 67 miles per hour with a standard deviation of 3 5 miles per hour Assume the speeds are normally distributed What is the probability that a randomly selected car is traveling faster than 70 miles per hour

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