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irinina [24]
2 years ago
9

PA) = 0.20 AB) = 0.25 PA and B) = 0.10 What is PBA)?

Mathematics
1 answer:
harina [27]2 years ago
7 0

Answer:

C. 0.5

Step-by-step explanation:

Use formula for conditional probability

P(B|A)=\dfrac{P(A\cap B)}{P(A)}

Given:

P(A\cap B)=0.1\\ \\P(A)=0.2,

then

P(B|A)=\dfrac{0.1}{0.2}=\dfrac{1}{2}=0.5

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​(A) How many ways can a 3​-person subcommittee be selected from a committee of 6 ​people? ​(B) How many ways can a president co
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Answer:

A) N = 20 ways

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B)N = 120 ways

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Step-by-step explanation:

A) the number of ways a 3​-person subcommittee be selected from a committee of 6 ​people N;

Since there is no given order for the selection, this means that the order of selection is irrelevant. Therefore, this is a combination problem where order is not considered.

N = nCr

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N = 6!/3!(6-3)! = 6!/3!3!

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B) the number of ways a president, vice president and secretary can be chosen from a committee of 6 ​people N;

In this case, there is a given order of selection for the 3 posts. This is a permutation.

N = nPr

N = 6P3

N = 6!/(6-3)!

N = 6!/3!

N = 120 ways

The president, vice president and secretary can be chosen from a committee of 6 ​people in 120 ways.

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2 years ago
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Answer:

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Step-by-step explanation:

3,000 times 10 is 30,000, therefore 30,000/10=3,000

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