Tossing six fair coins
An experiment consists of tossing six fair coins. Determine the probability density and cumulative distribution function for the number of heads that will appear in the experiment.
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A gambler has a fair coin (with one head and one tail) and a two-headed coin. He selects one of the coins at random, and when he flips it, it shows heads. Suppose that he flips the same coin a second time and again it shows heads. Then he flips th
A second random sample of 30 bowlers at Ethel's Bowling Alley has a mean of 18. Using the criterion of p= .05 and both tails of the sampling distribution, decide if each sample represents the population of average bowlers?
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Compute the Z score for the individual students in each course ( each students score is labeled x). Which test score is a better performance relative to their class mates? Explain your answer.
In the setup of a manufacturing process, the probability that a machine is correctly adjusted is .98. When correctly adjusted, the machine operates with a 4% defective rate. However, if it is incorrectly adjusted, the defective rate is 75%.
70% of light aircraft that disappear while flying in a certain country are subsequently discovered. Of the aircraft that are discovered, 60% have an emergancy locator, whereas 90% of the aircraft not discovered do not have such a locator. Suppose
A biometric security device using fingerprints erroneously refuses to admit 2 in 1,000 authorized persons from a facility containing classified information. The device will erroneously admit 2 in 1,001,000 unauthorized persons. Assume that 90 perc
A computer center has three printers, A, B and C, which print at different speeds. Programs are routed to the first available printer. The probability that the program to printers A, b and C are 0.6, 0.3, 0.1, respectively.
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