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Find the probability for the Hyper-geometric distribution.
Of the nine members of the board of trustees of a college, five agree with president on a certain issue. The president selects three trustees at random and asks for their opinions. What is the probability that at least two of them would agree with them?
At.01 significance level, can we conclude that there is more variation in selling prices of oceanfront homes?
Employees of a local university have been classified according to gender and job type. The following table provides data about the employees.
What is the probability she received 5 or more email during the same period?
If campaign can be expected to also to rise the probability of best case scenario to 0.4, is it a good investment.
Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
Do these data suggest a statistically significance difference between the proportions of drug-resistant cases in the two states? Use a 0.02 level of significance and computed value of 2.37.
Suppose that n trials of a binomial experiment result in no successes.
what is the probability that at least 8 of the words on the test are words that the student knows?
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
Categorize the events as dependent or independent. Events A and B where P (A) = 0.7, P (B) = 0.8, and P (A and B) = 0.56.
Is there any evidence that the different teatments produced different responses? If so, which one seems to work best?
What is the probability that both defective lights will be found within three trials?
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