Equal likelihood of being selected
A population of sports teams is comprised of 26 individual teams. We wish to randomly sample 4 teams for observation. If each team has an equal likelihood of being selected, what is the probability that any given sample of size 4 will be selected?
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On January 1, 1981, Nick wins $150,000 in the lottery and he invests overall amount in two stocks, stock X and stock Y. At the end of 1981, he sells both stocks for total profit of $30,000. If he earned 14% on stock X and 29% of stock Y, how much
An aircraft lanfing gear has the probability of 10-5 per landing of being damaged from excessive impact. Determine the probability that the landing gear will survive a 10,000 landing design life without damage?
Compute the battery failure probability under normal operating conditions. Compute the conditional probability that the battery will fail, given that the other has failed.
The probability that sample proportion of Americans who intend to reduce their debt is less than 0.40 is _(Answer 1)_.
Heights of children entering kindergarten are normally distributed with the mean height of 103cm and a standard deviation of 1.27cm. Compute the probability that a random sample of 8 children will have an average height more than 103.5cm?
Heights of children entering kindergarten are normally distributed with a mean height of 103cm and a standard deviation of 1.27cm. What is the probability that a random sample of 8 children will have an average height more than 103.5cm?
For after-hours emergencies, doctors often employ a messaging/paging service to allow patients to contact them. If it is known that 30% of patients who call the messaging service fail to leave message for doctor, determine the probability that out
An industrial fan is designed to move 2,500 cubic feet of air per minute, on average. Under normal operating conditions, the standard deviation of air volume moved by this fan is 300 cubic feet per minute. If the fan is operating as designed, what
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