Answered

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The graph shows the number of hours per day spent eating or drinking by a group of teenagers and the number of hours per day spent working or volunteering. A line of best fit for the data is shown.

A graph is shown in the xy-plane. The x-axis is labeled as Hours Spent Eating or Drinking Per Day and the y-axis is labeled as Hours Spent Working or Volunteering Per Day. The values on the x-axis range from 0 to 0.9 in increments of 0.1 and the values on the y-axis range from 0 to 0.5 in increments of 0.05. A line starts from a point 0.1, goes up, and passes through (0.2, 0.175). Some points are marked below this line and some points are marked above this line.

Use the graph to determine the average number of hours a teenager would spend working or volunteering if they spent 0.6 hours eating or drinking.
Use the graph to determine the average number of hours a teenager would spend working or volunteering if they spent 1.2 hours eating or drinking.
Do you think the predictions from part (a) and part (b) are reliable? Explain your reasoning.

Sagot :

Answer: for c it is No

Explanation: most of the points are under the line for it to be accurate about half should be on top and about half should be on bottom

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