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SoTex Productions is doing a spring catalog shoot for a big clothing retailer. They want to show 3 couples (boy and girl) in each shot, and they have 6 male models and 7 female models. How many different combinations of models can they use in this shoot?
One table has a standard deviation of $50 while the other has a standard deviation of $150. What conclusion can be drawn from the data?
Using a spreadsheet, create a table that shows the relationship among the units of heights of people in centimeters, inches and feet in the range of 150cm to 2m. Use increments of 5cm.
Suppose we want to conduct a poll to estimate the proportion of voters who approve of the current mayor, and we plan to use a 95% confidence interval for our estimate.
At the .01 significance level, is the mean grade of the women higher than that of the men? Set up the 5-step hypothesis testing procedure and solve.
owever, one of the children fails to solve the problem, so the researcher has an undetermined score. What is the best measure of central tendency for these data?
Use empirical Rule to evaluate proportion of costs within 2 standards deviations of mean. Write down these limits.
The kinds of statistical methods that were used to formulate the author's argument.
There were 23 people at my last Arachnophobics (fear of spiders) Anonymous' Halloween party. As a gag fake spiders were put into the gift boxes to be handed out when people came in.
56% are enrolled in school. If a sample of 500 such children is randomly selected, find the probability that at least 250 will be enrolled in school.
A researcher used stepwise regression to create regression models to predict Birth-Rate (births per1000) using five predictors:
for a population with a mean of micro 50 and a standard deviation of s 10 how much error on average would you expect
1.p.t. barnum is concerned about the health of his star trapeze artist. if the artist is capable of performing a triple
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