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Naya [18.7K]
3 years ago
5

Ben is 50 years old. His son, Carl is 24 years old. How many years ago was Ben 3 times as old as Carl?​

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0

Answer:

78

Step-by-step explanation:

50 - 24 = 26

26 x 3 = 78

<em>Hope it helps...</em>

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k0ka [10]

We're given the following probabilities:

P(A_1)=0.30

P(A_2)=0.55

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(a) Yes, A_1 and A_2 are mutually exclusive. This is exactly what zero probability of their intersection means. The two events cannot occur simultaneously.

(b) Use the definition of conditional probability to expand:

P(A_1\cap B)=P(A_1)P(B\mid A_1)=0.30\cdot0.20=0.06

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(c) By the law of total probability,

P(B)=P(A_1\cap B)+P(A_2\cap B)=0.06+0.0275=0.0875

(d) Bayes' theorem says

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P(A_2\mid B)=\dfrac{P(A_2)P(B\mid A_2)}{P(B)}=\dfrac{0.55\cdot0.05}{0.0875}\approx0.314

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Dmitriy789 [7]

Answer:

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Answer:

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