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find the probability?

Update:

The hours of sleep data for some students, suggest that the population of hours of sleep can be modeled as a normal distribution with mean = 7.2 hours and standard deviation = 1.3 hours. (a) Determine the probability assigned to sleeping less than 6.5 hours. (b) Find the 70th percentile of the distribution for hours of sleep.

1 Answer

Relevance
  • 4 years ago

    No chance!

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