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Question: Suppose you have to cross a train track on your commute. The probability that you will have to wait for a train is 15, or .20. If you don't have to wait, the commute takes 15 minutes, but if you have to wait, it takes 20 minutes.
a. What is the expected value of the time it takes you to commute?
b. Is the expected value ever the actual commute time? Explain.
The area under the standard normal curve between 0 and 2 is twice the area under area between 0 and 1.
The various types of traffic accidents that occur in a certain tunnel, over a given time period, constitute independent stochastic processes. We suppose that accidents stopping the traffic in the northbound (respectively, southbound) direction in ..
the hourly wages in a particular industry are normally distributed with mean 13.20 and standard deviation 2.50. a
The overall average for the samples is 17 ounces. The range is only 0.5 ounce. Determine the upper and lower control-chart limits for averages for the boxes of cereal.
The director of the Alaska Department of Health and Social Services planned to check this claim by selecting a random sample of 250 recipients of Medicare.
a toll bridge charges 1.00 for a passenger car and 2.50 for other vehicles. experience suggests that 60 of vehicles
Let the sample space S be the (strictly) positive integers.
the monthly growth of the height of trees in montana has a mean of 47.5 and a standard deviation of 11.6. assume a
What is the appropriate conclusion based on the outcome of the hypothesis test?
Determine the mean production of acorn in the last six years and calculate the standard deviation of data relative to acorn production.
Please assist regarding an index based on how people feel about the economy. In this case, the base was 1985 and set at 100.
burger dome sells hamburgers cheeseburgers french fries soft drinks and milk shakes as well as a limited number of
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