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Box A contains three balls with colors red, green and blue and box B contains a balls with colors red, yellow ,blue, white and brown A box is chosen and a ball is picked.
1. What is the probability that the ball may be brown is?
2. What is the probability that the ball may be green or blue is?
3. What is the probability that the ball may be green or blue is red or blue is?
If a distribution of test scores is normal with a mean of 78 and a standard deviation of 11, what percent of the area lies below 60?
at a psychology final exam the scores are normally distributed with a mean 73 points and a standard deviation of 10.6
the business college computing center wants to determine the proportion of business students who have laptop computers.
Assumed to have 20 pounds of carry-on baggage, find the probability that his total is greater than 195 pounds. Round your answer to three decimal places.
an actuary determines that the claim size for a certain class of accidents is a random variable x with moment
the number of taxicabs waiting outside a popular downtown bar can be modeled as a poisson random variable. the
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
Confidence interval for the true mean and Evaluate the 95% confidence interval for the true mean advertising expense?
suppose we were interested in determining if there were differences in the average prices among two local supermarkets.
A fundamental ethical problem in statistics arises in experimentation (i.e., in the context of studies of experimental drugs for treating AIDS). On one side, organizations such as the National Institute of Health insist on randomly assigning treatmen..
What is the probability that the dealer busts and you may assume that the dealer is usign only 1 deck, and that you have not observed the values of any other cards.
1. John made an experiment by tossing three fair coins. (Fair coin has the same probability for a tail and head 1/2). (a) List the sample space for this experiment. (All possible outcomes) (b) What is a probability of three tails?
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