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1. Find out the mean and standard deviation of following probability distribution

x 1 2 3
P(x) 0.4 0.15 0.35

 2. In testing new drug, researchers found that 5% of all patients by using it will have the mild side effect. A random sample of 15 patients by using the drug is selected. Find out the probability that:

a) exactly three will have this mild side effect

b) at least two will have this mild side effect.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921264

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