Distribution function of a discrete random variable
Suppose that the distribution function of a discrete random variable X is given by
F(a)=0 for a<01/3 for 0 = a < 1 21/2 for 1/2 = a < 3/41 for a >= 3/4
Determine the probability mass function of X.
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The six readings, in parts per million, were 9.54, 9.61, 9.32, 9.48, 9.70, 9.26. Estimate σ^2, the population variance for readings on this standard, in a 90% con dence interval. What assumptions did you make in calculating this confidence i
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You toss n coins, each showing heads with probability p, independently of the other tosses. Each coin that shows tails is tossed again. Let X be the total number of heads.
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