Question 852682
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Hi,
p = .30, n = 15
1) 15*.30 = 5 doughnuts, On an average, will have chocolate icing
2) Using TI (highly recommended for cumulative probabilities)
 p(x  &#8805;  6) = 1 - binomcdf(15, .30, 5) 
 p(x  &#8805;  6) = .2784 (stattrek.com)(also, highly recommended for cumulative probabilities)