A tyre manufacturing company kept a record of the distance covered before a tym
needed to be replaced.
Distance (in km) Less than 4000 4000-9000 9001-14000 | More than 14000 |
Frequency
20 | 210 L 325 | 445
If you buy a tyre of this company, what is the probability that
(i) it will be replaced before it has covered 4000 km ?
(ii) it will last for more than 9000 km ?
(iii) it will need to be replaced after it has covered somewhere between 4000 and 14000 km?
Answers
Answered by
3
Answer:
Probability that it will need to be replaced before it has covered 4000 km =
1000
20
=0.02
Probability that it will last more than 9000km=
1000
325+445
=
1000
770
=0.77
Probability that it will need to be replaced after it has covered somewhere between 4000 km and 14000 km =
1000
210+325
=
1000
535
=0.535
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