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A discrete random variable (RV) can only take a selected number of values whereas a continuous rv can take infinitely many.
T = RV 4 = R8 4/8 = R R = 1/2
Follow these steps:Find all the values that the random variable (RV) can take, x.For each x, find the probability that the RV takes than value, p(x).Multiply them: x*p(x).Sum these over all possible values of x.The above sum is the expected value of the RV, X.
RV Roof Magic is a single coat application. You get 50 sq. ft. per gallon at 20 mil coverage. Most customers will chalk off their roof into 8X6 areas, and when you are done filling in that section you should be done with a gallon of the product.
RV = T R*8 = 4 Divide both sides of the equation by 8 to find the value of R: R = 4/8 Reducing the fraction to its lowest terms: R = 1/2