1) Binomial Distribution A survey on economic status of seafarer showed that 70% are successful while 30% failed. A c

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1) Binomial Distribution A survey on economic status of seafarer showed that 70% are successful while 30% failed. A c

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1) Binomial DistributionA survey on economic status of seafarer showed that 70%are successful while 30% failed. A case history of 20 seafarer are now under study. What is the probabilitythat more than 12 of them are successful? Find the mean, varianceand standard deviation.
2) Find the probability value of P(Z< - 0.5)
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