Chapter 12: Q.34 (page 717)
How many acres will be left to mow after 100 hours of work?
The number of acres that will be left to mow after 100 hours of work is 1.230 acres
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Amelia plays basketball for her high school. She wants to improve to play at the college level. She notices that the number of points she scores in a game goes up in response to the number of hours she practices her jump shot each week. She records the following data:
| (hours practicing jump shot) | (points scored in a game) |
| 5 | 15 |
| 7 | 22 |
| 9 | 28 |
| 10 | 31 |
| 11 | 33 |
| 12 | 36 |
Construct a scatter plot and state if what Amelia thinks appears to be true.
The table contains real data for the first two decades of flu cases reporting
Find the correlation coefficient.
65. Explain what it means when a correlation has an of .
Data are collected on the relationship between the number of hours per week practicing a musical instrument and scores on a math test. The line of best fit is as follows: What would you predict the score on a math test would be for a student who practices a musical instrument for five hours a week?
A specialty cleaning company charges an equipment fee and an hourly labor fee. A linear equation that expresses the total amount of the fee the company charges for each session is .
What is the y-intercept and what is the slope? Interpret them using complete sentences
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