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algol [13]
3 years ago
15

A sample of 6500 automobiles found that 1560 of the automobiles were black, 3120 of the automobiles were sedans, and 1170 of the

automobiles were black sedans. Find the probability that a randomly chosen automobile from this sample is black or a sedan.
Mathematics
1 answer:
andriy [413]3 years ago
7 0

Answer:

P=0.54.

Step-by-step explanation:

We know that in a sample of 6500 automobiles found that 1560 of the automobiles were black, 3120 of the automobiles were sedans, and 1170 of the automobiles were black sedans.

We calculate the number of  sedans that are not black:

3120-1170=1950

We calculate the number of black cars  that are not sedans:

1560-1170=390

The number of automobiles  which are black or a sedan is

1950+390+1170=3510.

The probability that  the automobile is black or a sedan is:

P=3510/6500

P=0.54.

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