Business, 14.02.2020 18:25 ojbank4411
The number of persons coming through a blood bank until the first person with type A blood is a random variable Y with a geometric distribution. If p denotes the probability that any one randomly selected person will possess type A blood, then E[Y ] = 1/p and V [Y ] = (1-p)/p2.
Find a function of Y that is an unbiased estimator of V [Y ].
Then suggest how to form a two-standard error bound on the error of estimation when Y is used to estimate 1/p.
Answers: 1
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2standard deviation a particular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?
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Bill dukes has $100,000 invested in a 2-stock portfolio. $62,500 is invested in stock x and the remainder is invested in stock y. x's beta is 1.50 and y's beta is 0.70. what is the portfolio's beta? do not round your intermediate calculations. round the final answer to 2 decimal places.
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The number of persons coming through a blood bank until the first person with type A blood is a rand...
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