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1) Given that p(a and b)= .4 and p(a/b)= .8, find p(b)
2) When two cards are drawn from an ordinary deck of 52 playing cards, what are the probabilities of getting (a) 2 aces; (b) 2 spades, of which there are 13 in the deck; (c) a king and a queen?
R for my statistics class and need to write the code for this problem: "An experiment with four treatments and five replications of each treatment, which requires 20 experimental units. How many randomizations are possible for this experiment?..
he population consists of all 15 year olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the roster of the high school as the sampling frame.
Lengths of his classes are uniformly distributed between 45.0 and 55.0 minutes. Determine the probability that the given class period run less than 51.5 minutes.
At the .05 significance level, can we conclude that more than 60% of the homes have an attached garage? What is the p-value.
Formulate the null and alternative hypotheses for this application.
suppose that n items are sampled from a manufacturing process and the number of defective items found among these is x.
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables:
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
He would like 95% confidence intervals for the average price people would be willing to pay: one for the higher-income group, one for the lower-income group.
The population variances are 4.6 and 5.0 respectively. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades?
Historically, demand has been for 50, 100, or 150 units each week, so the company makes one of those run sizes. In the past, the manager of the department has made 100 units per week for regular production. A: Prepare a payoff table showing profit..
The researcher would like to create another regression model and use data from people who are currently students - In simple Ordinary Least Squares regression, the fitted line must always go through a particular point, which is found from the x and ..
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