Mathematics, 10.06.2020 00:57 safi30360oz0c34
The owner of a sporting goods store gathered data about the numbers of men’s, women’s and children’s bicycles sold each month. She used a graphing tool to organize the data in different scatter plots and found these lines of best fit:
-The relationship between the numbers of men’s, x, and women’s, y, bicycles sold is modeled by the equation y = 0.95x + 0.83, and the correlation coefficient for the data is 0.791.
-The relationship between the numbers of men’s, x, and children’s, y, bicycles sold is modeled by the equation y = 0.87x + 0.98, and the correlation coefficient for the data is 0.564.
-The relationship between the numbers of children’s, x, and women’s, y, bicycles sold is modeled by the equation y = 0.73x + 0.91, and the correlation coefficient for the data is 0.945. Which line of best fit can the store owner expect to produce the most reliable predictions?
A. the line modeling the numbers of men’s and women’s bicycles sold
B. the line modeling the numbers of men’s and children’s bicycles sold
C. the line modeling the numbers of children’s and women’s bicycles sold
D. All three lines will give equally reliable predictions.
Answers: 2
Mathematics, 21.06.2019 18:00
What is the difference between the predicted value and the actual value
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Mathematics, 21.06.2019 18:50
Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling
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Mathematics, 22.06.2019 02:00
35 ! insert < , > , or = to make the sentence true. 12 __ 25 > =
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The owner of a sporting goods store gathered data about the numbers of men’s, women’s and children’s...
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