Question
(a) A researcher recently surveyed 400 randomly chosen accidents that occurred on a Saturday evening. In the following table, each accident is classified by the
(a) A researcher recently surveyed 400 randomly chosen accidents that occurred on a Saturday evening. In the following table, each accident is classified by the number of vehicles involved and if alcohol contributed to the accident:
| Number of Vehicles Involved | |||
| Alcohol a factor | One | Two | Three or more |
| Yes | 50 | 100 | 20 |
| No | 25 | 175 | 30 |
(i) What percentage of accidents involved more than one vehicle?
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Calculus
Authors: Howard Anton, Irl C Bivens, Stephen Davis
10th Edition
1118404009, 9781118404003
