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A bowl with 10 marbles: 2 red marbles, 3 green marbles, and 5 blue marbles. We randomly select 4 marbles from the bowl, WITH REPLACEMENT, that is once a marble is selected, its color is noted and the marble is put back in the bowl (notice thisdoes NOT resemble the hypergeometric distribution as that is without replacement).
a) What is the probability of selecting 2 green marbles and 2 blue marbles?
b) What is the expected number of green marbles?
c) What is the covariance between Y1=the number of green marbles and Y2= the number of blue marbles?
Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..
For each of the 50 states and Washington, D.C., a number of statistics related to education are available for 1992
Suppose U is a Unit (25, 50) random variable.Find the CDF of U and sketch a graph.
Following a lognormal distribution with a mean of 3000 rpm and std deviation of 0.87, what if the boss want a 5% chance of HW failure before selling, how often would I have to replace this hardware ?
What sample size would be needed to estimate the true proportion of students at your college
Assume the arrival of these emails i3 approximated by the Poisson distribution.
Given following financing project being considered by venture film, determine critical path probability of completion by 17 weeks.
Probability distribution described by the following density curve and The expected value of the sum of the weights of the two oranges, in pounds
When would you use hypothesis testing and when would you use confidence intervals?
An election coming up next week promises to be very close. In fact, assume that 50% are in favor and 50% are against. Suppose you conduct a poll of 791 randomly selected likey votes. Approx. how different will the percent in favor (from the poll) ..
Either summarize your design or give an appropriate layout with table.
Determine the chance between 39% and 41% of registered voters in sample are Democrats.
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