SOLUTION: A random variable follows a binomial distribution with a probability of success equal to 0.65. For a sample size of n = 7, find
a. the probability of exactly 3 successes
b. the p
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-> SOLUTION: A random variable follows a binomial distribution with a probability of success equal to 0.65. For a sample size of n = 7, find
a. the probability of exactly 3 successes
b. the p
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Question 1081098: A random variable follows a binomial distribution with a probability of success equal to 0.65. For a sample size of n = 7, find
a. the probability of exactly 3 successes
b. the probability of 4 or more successes
c. the probability of exactly 7 successes
d. the expected value of the random variable Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! a. 7C3*.65^3*.35^4=35*.275*.015=0.1442
b. 7C4*65^4*.35^3=0.2679
7C5*.65^5*.35^2=0.2985
7C6*.65^6*.35=0.1848
.65^7=0.0490
Total is 0.8002
c.is 0.0490
d. E(X)=7*0.65=4.55
