[10 10] The weight distribution (in lb) of parcels sent in
Chapter 0, Problem SE4.16(choose chapter or problem)
[10 10] The weight distribution (in lb) of parcels sent in a certain manner is normal with mean value 15 and standard deviation 3.8. A surcharge is applied to parcels weighing more than 21 lb. a. Find the percentage of parcels under the surcharge weight. b. Find the probability that among three randomly chosen parcels at least one is above the surcharge weight.
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