5.7 A safety agency analysed road traffic accidents involving injury to pedestrians by private cars and produced
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5.7 A safety agency analysed road traffic accidents involving injury to pedestrians by private cars and produced the following table:
What is the probability that:
(a) An injury to a pedestrian proves fatal?
(b) An accident involved a sports car?
(c) An accident involved a 4×4 car or resulted in a nonserious injury?
(d) An accident resulted in serious injury and involved an ‘other’ type of car?
(e) An accident that involved a 4×4 car resulted in a fatal injury? Compare this figure and your answer to (a), and comment on whether the type of car and degree of injury are independent.
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Mehwish Aziz
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