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PROBLEM 6. 10 A histogram has mean 70 and standard deviation 5 If the histogram is...

PROBLEM 6. 10 A histogram has mean 70 and standard deviation 5

  1. If the histogram is not bell shaped but it is symmetric.  Find the least proportion of data falls between 70 and 80
  2. If the histogram is bell shaped. Find the proportion of data between 65 and 77

Solutions

Expert Solution

(A note on Chebyshev's theorem: The proportion of data falls within k standard deviations of the mean is at least

=1 - (1/k2)).

orchestra answered 1 year ago
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