Probability exactly two tagged fish are caught
In a small pond there are 50 fish, 10 of which have been tagged. If a fisherman's catch consists of 7 fish, selected at random and without replacement, what is the probability exactly two tagged fish are caught?
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Assume normal distribution and a 5% level of significance do a hypothesis test and calculate if the standard deviation is different between the years.
The mean number of bacteria colonies of a certain type in samples of polluted water is 2 per cubic centimeter (cm3).
Gorovitz Corporation's most recent balance sheet appears below: The company's net income for the year was $86 and it did not issue any bonds or repurchase any of its common stock during the year. Cash dividends were $23.
Riley's Paper Company manufactures computer paper for laser printers. The following information is related to production costs incurred in the manufacturing process during the month of March:
One of four different prizes was randomly put into each box of a cereal. If a family decided to buy this cereal until it obtained at least one of each of the four different prizes, what is the expected number of boxes of cereal that must be purcha
If a player rolls two dice and get a sum of 3 and 11, she wins 30. if the person gets 7 she wins 15. the cost to play the game is 3. Find the expectation of the game.
Determine the amount of revenue, cost, and gross profit or loss to be recognized in each of the three years under IFRS, assuming that using the percentage-of-completion method is not appropriate.(Enter your answers in millions.)
Assume time to breakdown of a randomly chosen generator, Y, follows an exponential distribution with a mean of 15 days. (a) What is the probability a generator will break down in the next 21 days?
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