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At a used-book sale, 100 books are adult books and 160 are children's books. Of the adult books, 70 are nonfiction while 60 of the children's books are nonfiction. If a book is selected at random, find the probability that is is:
a. Fiction
b. Not a children's nonfiction book
c. An adult book or a children's nonfiction book
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
Now make a scatter plot of data from 1982 to 1998 (again, use years since 1800). Determine a linear, power, or exponential model that explains the crude oil production during this time period.
How much do typical employee and his or her family spends per year on dental expenses? Sample of 45 employee reveals mean amount spend last year was $1,820, with standard deviation of $ 660.
Formulate the hypotheses that can be used to determine whether union membership increased in 2006.
It took a contractor 5000 hours to manufacture their first unit of an item. If the contractor expects to achieve a 94% unit learning curve, how many hours would be required to manufacture units 76-100?
If 900 users visited the site, would the probability that more than 250 of them click on an ad be higher or lower than the answer found in part
It seems that simulation could handle any situation or study. But is that always true? Discuss instances in which a simulation would be important and useful, and then a situation in which a simulation would not be appropriate.
You have been given a report that presents two regression models with different numbers of independent variables. You do not have the data so you cannot re computed regression models. Nevertheless, you have been asked to find out which model is b..
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
One state lottery has 1000 prizes of $1, 200 prizes of $5, 50 prizes of $25, 15 prizes of $150, 4 prizes of $500, and 1 prize of $2500. What is the lottery expected profit per ticket?
Which of given is the correct decision statement for test?
A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...
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