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Official Explanation

I. Between 10 hours and 11 hours, the percentage value increases from 4 to 9; that’s more than 100% increase and the highest of all the intervals.

Hence, 10 and 11 is the correct answer choice.

II. The label that lies most away from the curve represents 11 hours and approximately 9% of the accidents.

Hence, 11 hours is the correct answer choice.
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Sajjad1994 Between 9 and 11 hours the percentage increase is from 3 to 9 , so isn't that greatest?­
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Sajjad1994 Between 9 and 11 hours the percentage increase is from 3 to 9 , so isn't that greatest?­
­Yes! You are right. The answer choices have been modified now to prevent any confusion.
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"The percentage of crashes due to fatigue, estimated by the polynomial" what does this mean?
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NOt able to understand the second questiono? What does least accurate mean? If there is a deviation in the graph, can that mean that it is least accurate?KarishmaB Can you help?
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The curve represents the estimates and the points represent the actual values. The estimate is least accurate at point x = 11 hrs. The curve is much lower than the point (actual value) at x = 11 hrs.

Ilanchezhiyan
NOt able to understand the second questiono? What does least accurate mean? If there is a deviation in the graph, can that mean that it is least accurate?KarishmaB Can you help?
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Understood now. Thank you very much
KarishmaB
The curve represents the estimates and the points represent the actual values. The estimate is least accurate at point x = 11 hrs. The curve is much lower than the point (actual value) at x = 11 hrs.

Ilanchezhiyan
NOt able to understand the second questiono? What does least accurate mean? If there is a deviation in the graph, can that mean that it is least accurate?KarishmaB Can you help?
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