Calculate variance of probability distribution
Let X be the discrete r.v. with the following probability distribution.
a) Calculate E(X).b) Calculate µ.c) Calculate variance of X.d) Calculate P(X > 5), P(X = 5) P(5 = X = 10).X P(X)1 .55 .110 .320 .1
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At the 5 percent level of significance, test the null hypothesis that gasoline prices in Toronto are no higher than the national average against the alternative hypothesis that they are.
There were no price, efficiency, or spending variances for the year, and actual selling and administrative expenses equaled the budget amount.
A government task force suspects that some manufacturing companies are in violation of federal pollution regulations with regard to dumping a certain type of product.
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Let X be the discrete r.v. with the following probability distribution. Calculate variance of X. Calculate P(X > 5), P(X = 5) P(5 = X = 10).
Give the entry in January 2015, when the 43,920-gallon shipment is received, assuming that the situation given in (b2) above existed at December 31, 2014, and that the market price in January 2015 was $2.90 per gallon.
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Suppose that for a very large shipment of integrated-circuit chips, the probability of failure for any one chip is 0.10. Assuming that the assumptions underlying the binomial distributions are met, find the probability that at most 3 chips fail in
Franz began business at the start of this year and had the following costs: variable manufacturing cost per unit, $9; fixed manufacturing costs, $60,000; variable selling and administrative costs per unit.
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