7. Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly between 1.5 and 2.2 minutes. a. What is the mean and variance of the time it takes an operator to fill out the form? b. What is the probability that it will take less than two minutes to fill out the form? C. Determine the cumulative distribution function of the time it takes to fill out the form.

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