Question: Question 43 ; a) A continuous random variable X has a density function given by [5+3] f(x)={3100x3otherwise Find i) E(X) ii) V(X). b) 60% percent

Question 43 ; a) A continuous random variable X has a density function given by [5+3] f(x)={3100x3otherwise Find i) E(X) ii) V(X). b) 60% percent of all persons in a country population have at least some college education. Choose 10 persons at random. Find the probability that at least 7 have some college education. Question H4: [3+3+2] a) Let x be a normally distributed random variable with a mean of 10 and a standard deviation of 2 . Find the probability that x lies between 9.4 and 10.6

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