Perform the indicated operations.-6 - 32 + 3(7) + (-3)2
A. 3
B. 15
C. 27
D. 126
Answer: B
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?What does the line of best fit not tell you about data that is strongly correlated?
A. ?It gives you a tool to predict y values for given x values. B. ?It is a predictive tool for your data set. C. ?It gives you y values in your data set for given x values. D. ?The distance between each point, on both sides of the line, and the line of fit equals 0. E. The line of fit is a straight line with a slope and y-intercep?t.
Use the frequency table below to answer the following question(s).
An outlier of a data set is defined as any data point more than 1.5 times the interquartile range above the third quartile or below the first quartile. The number of outliers in this data set is
A. 5. B. 10. C. 0. D. 20. E. none of these
Divide.
A. 57 B. 58 C. 53 D. 55
Solve the problem.A bookstore is having a sale. All books included in the sale have a colored sticker on them to indicate the sale price. There are green stickers, red stickers, and orange stickers. Bob, Sue, and Fred each make purchases of books that are on sale. Each row of the table gives information about the numbers of book purchases and the total cost of the purchase (before taxes) . 
Use this information to set up a matrix equation of the form 
which can be solved to determine the price for each type of sale book. Solve this matrix equation to find the price of
a book with a green sticker.Use the fact that for A = 
, A-1 = 
.
A. $4.89
B. $4.99
C. $4.91
D. $4.96