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Two urns contain coloured balls. urn 1 contains 4 blue, 3 green and 5 red balls. urn 2 contains 6 blue, 2 green and 3 red balls. a ball is selected at random from urn 1 and transferred to urn 2. a ball is then selected at random from urn 2. if the ball selected from urn 2 is red, what is the probability that the ball transferred from urn 1 was...(i)red?
Determine the special property of standard normal distribution, compared to other normal distributions?
What is the probability that the graduate selected will be a male who is not a member of a sports team? What is the probability that the graduate will be either a female or a member of a sports team?
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
Describe a hypothesis related to the area of psychology in which you are predicting an interaction. Describe the specific nature of the interaction and why you think an interaction would occur.
Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30. What is the probability all the hotel's rooms will be rented?
Suppose that n trials of a binomial experiment result in no successes.
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. These data should be analyzed with a
The sample results are given below. At the 0.10 significance level, test the claim that response and major are independent.
Flaws in a certain type of drapery material appear on the average of one in 150 square feet. If we assume the Poisson distribution, give the probability of at most one flaw in 225 square feet.
The first three digits of a university telphone exchange are 452. if all the sequences of the remaining four digits are equally likely, what is the probability that a randomly selected universtiy phone number contains seven distinct digits?
However, due to the variability in the traffic situation every morning, the standard deviation of these commutes is 5 minutes. Jenn has to be at work by 8:30 A.M. every morning.
Find the distribution of profit for a unit price of $500. Use the Decision Table tool to find the best price between $400 and $600 in steps of $25.
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