statistics?

The length of time it takes to find a parking space at BHCC. follows a normal distribution with a mean of 10 minutes and a standard deviation of 2 minutes. 

99% of the time, it takes less than how many minutes to find a parking space? (Round your answer to two decimal places.)

2 Answers

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  • 4 weeks ago

    This has nothing to do with Personal Finance.

  • http://www.z-table.com/

    Find the z-score that corresponds to 0.99

    z = 2.33

    2.33 = (time - mean) / standard deviation

    2.33 = (t - 10) / 2

    2.33 * 2 = t - 10

    t = 10 + 4.66

    t = 14.66

    99% of the time, you'll find a parking spot in under 14.66 minutes

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