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Three companies A, B and C are competing for a contract to build a condominium. The probabilities that companies A, B and C will win the contract are 0.25, 0.45 and 0.3 respectively. If company A, B and C win the contract, the probability that they will make profits are 0.8, 0.9 and 0.7 respectively.
What is the probability that the companies will make profit? If the contract is found to be profitable, find the probability that the contract was given to company A
Suppose X of the company's absent employees has a Poisson probability ditribution with an average number of 3.4, find Mean.
The amount of time a bank teller spends with each customer is normally distributed with a mean of 3.10 minutes and a standard deviation of 0.40 minutes.
test results from an electronic circuit board indicate that 50 of board failures are caused by assembly defects 30 are
At the gym Suppose that 10% of adults belong to health clubs, and 40% of these health club members go to the club at least twice a week.
Set up the null and alternative hypotheses to see if the data show that it does indeed take seniors longer than 15 seconds to cross the street. In terms of traffic flow, what are the implications of a Type I error?
What is wrong with the manager's statement? Keep in mind that this question allows multiple correct answers and incorrect answers
What is the purpose of the percentage chart? How would you find the center line if you had no standard?
1. Determine whether a linear regression model is appropriate. 2. Calculate b1 and b0. What is the sample regression equation? 3. Find the predicted value of y if x is 10, 15, and 20.
a randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. the primary outcome
The treatment is given to only n = 20 patients. What is the probability that the treatment is successful for 70% or more of these 20 patients?
If a student is chosen at random, what is the probability of choosing a male or a student who resides in the city?
You have been given the following scale data (test scores): 100, 109, 114, 118, 125, 135, 135, 138, 139, and 140. You must set up a database in SPSS.
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