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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?
Suppose that two students named Gwyneth and Josephine have a total of 20 CDs in their room, consisting of 5 blues CDs and 15 reggae CDs. Each of the students chooses 7 CDs at random (without replacement), with all choices equally likely. (Thus, a..
Suppose that 30 people have been asked in a survey about how many hours they spend watching TV per day. Then, use these data to find a 95% confidence interval for the mean amount of time spent watching TV is 1.5 to 3.2 hours. Which statement is NOT t..
1. an art professor was interested in seeing what size group is best to prime the pump so to speak to encourage
The control chart is a graph used to track and monitor how a process develops or changes over time. A control chart always has a central line for the average, an upper line for the upper control limit and a lower line for the lower control limit. The..
an article that deals with sleep and shift-workers.1.what can you tell us about the journal that this article was
1. In an extensive study involving thousands of British children, Arden and Plomin (2006) found significantly higher variance in the intelligence scores for males than for females. Following are hypothetical data, similar to the res..
A large playlist consists of songs with times which have mean 2 minutes ten seconds and standard deviation 15 seconds.
Carbon Monoxide (CO) is a colourless and odourless gas. Even at low levels of exposure, carbon monoxide can cause serious health problems. A home is considered safe if the mean CO concentration is 5.0 parts per million (ppm) or lower. We tak..
Determine whether the given value is a statistic or a parameter.
1. One sample has SS=100 and a second sample has SS=124.a. If n=8 for both samples, find each of the sample variances, and calculate the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfw..
a.compute descriptive statistics for each stock and the sampp 500. comment on your results. which stocks are most
Describe the error in the conclusion. Given: There is a linear correlation between the number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the pulse rate increases. Conclusion: Cigarettes cause the pulse rate to incr..
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