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Suppose that two cards are randomly selected from a standard 52-card deck. What is the probability that the first card is a club and the second card is a club if the sampling is done without replacement? What is the probability that the first card is a club and the second card is a club if the sampling is done with replacement?
testing for population mean.a quality control expert is called in to determine whether a newly installed machine is
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
why is a z-score range -3 to 3? if a normal distribution is not assumed can a z-score still be used? why or why
what size sample will be needed to construct a 95 confidence interval on a ballot issue if the estimate must be plusmn
If Kim expects to use phone for 21 hours per month, which plan must she choose?
question during 9 surveys throughout the past decade the apartment vacancy rates in minneapolis in percentage were
The mean and standard deviation of these scores are 23.0 and 5.0 respectively. The test was administered to 100 students. What is the T-score equivalent to the raw-score 13?
Jose scores 842 on the SAT. Assuming that both tests measure the same thing, what score on the ACT is equivalent to Jose's SAT score?
suppose that the probability that a person between the ages of 19 and 24 checks their daily horoscope is 0.12. if 400
If the average importance were computed for each group, would you expect the sample means to be similar or different? What was the total sample size in this study?
Scores on a scholastic aptitude test are normally distributed with standard deviation σ=100 points. A group of 25 inner city high school students takes the test; their mean scores is x-bar = 440 points.
a horse race has 12 entries and one person owns 3 of those horses. assuming that there are no ties what is the
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