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The time taken by people to fill a survey form follow a normal distribution with a mean of 100 minutes and a standard deviation of

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The time taken by people to fill a survey form follow a normal distribution with a mean of 100 minutes and a standard deviation of 10 minutes. The probability that a person chosen at randomly taking less than 85 minutes to complete this form is: O a. 0.0668 0 b. 0.4332 0 0. 0.9332 0 d. 0.7667

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