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What is the probability that events A and B both occur? (1)

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Director
Joined: 03 Jul 2003
Posts: 652
What is the probability that events A and B both occur? (1) [#permalink]

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13 Dec 2003, 21:46
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What is the probability that events A and B both occur?

(1) The probability that event A occurs is 0.8.
(2) The probability that event B occurs is 0.6.
CEO
Joined: 15 Aug 2003
Posts: 3454

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13 Dec 2003, 22:46
What is the probability that events A and B both occur?

(1) The probability that event A occurs is 0.8.
(2) The probability that event B occurs is 0.6.

E

Director
Joined: 13 Nov 2003
Posts: 960
Location: Florida

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13 Dec 2003, 23:38
Titleist wrote:
say "EEEEEEEEEEEEEE"

Manager
Joined: 12 Oct 2003
Posts: 247
Location: USA

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14 Dec 2003, 07:06
E

the question is similar to the ones like "what is the interest on 1000 in 3 years at 5%" .. we don't know whether it is simple or compound interest.
Director
Joined: 03 Jul 2003
Posts: 652

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14 Dec 2003, 07:12
Could someone kind enough to solve the question for
mutually exclusive and independent types.
Director
Joined: 13 Nov 2003
Posts: 789
Location: BULGARIA

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14 Dec 2003, 10:43
When the events are mutualy exclusive it means that the occurence of A excludes or precludes , if you want, the occurence of B or they can not happen both at the same time. In other words there is not intersection of the two circles if you use Venn diagrams. If the events are independent then it means that they can both occur at the same time and the prob is 0.8x0.6=0.48. In this case it is not provided if the events are mutually exclusive or not so we can not say the prob of both A and B occuring at the same time.
14 Dec 2003, 10:43
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