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For the daily lottery game in a particular state, participants select 4 numbers between 0 and 9. A number cannot be selected more than once, so a winning ticket could be 3071 but not 3371. THe order of selection is important. Purchasing one ticket allows you to select one set of numbers. The winning numbers are announced on TV each night.a/ How many different outcomes (four-digit numbers) are possible?
b/ if you purchase a ticket for the game tonight, what is the probability that you win?
c/ suppose you purchase 3 tickets for tonight's drawing and select a different number for each ticket. What is the probability that you will not win with any of the tickets?
What would the optimal action be for International before running the sneak preview?
One way to find probabilities from a Standard Normal Distribution is to use probability tables, which are located inside the front cover of your textbook. According to the table, what is the probability when z ≤ -1.75? The probability when z ≤ 1...
According to an IRS study, it takes a mean time of 290 minutes for taxpayers to prepare, copy and electronically transfer a 1040 tax form. The standard deviation of this distribution is 75 minutes. A consumer watchdog agency selects a random sample o..
A journal article was recently published about typing skills, and in this article, the results of a national typing test were reported. The authors of the article claim that the population of those considered to be "skilled" typists can type an avera..
What is Goldberg's rationale for the study? Was the study designed to contribute to theory? Do the results of the study contribute to theory? For both questions: If so, how? If not, why not?
The cryptanalyst computes y = Dx' (c0), where D is the decipherment function corresponding to E, for each possible key x', and then checks the table to see if y is in it. If so, (x, x') is a candidate for the key pair. How should the table be ..
The mean weekly income of residents of one state is $570. A random sample of 12 residents of one small town in the state yielded the following weekly income in dollars
Discuss the data that the graph is used to visually represent. Speculate on why the editor chose the graph, as opposed to merely reporting the data.
The Jackson Engineering Company has a training program designed to upgrade the supervisory skills of production-line supervisors. Because the program is self-administered, supervisors require different numbers of hours to complete it. A study of pa..
2.Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness always matter?
Bob's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go") so it can make decisions regarding the possible construct..
4. Each member of a random sample of 15 business economists was asked to predict the rate of inflation for the coming year. Assume that predictions for the whole population of business economists follow a normal distribution with standard deviation 1..
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