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3 years ago

11

there are 7 students on a committee. To decide which 3 of these students will attend a conference, 3 names are chosen at random

by pulling names one at a time from a hate. What is the probability that sarah jamal and mai are chosen in any order

1 answer:

rosijanka [135]3 years ago

4 0

If it’s all 3 being chosen it’s 1/7 X 1/7 X 1/7 which is .002915 which would be a .29%

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A class consists of 23 women and 83 mean. If a student is random selected, what is the probability that the student is a woman?

slavikrds [6]

Answer:

$P(Woman) = \frac{23}{106}$

Step-by-step explanation:

Given

$Women = 23$

$Men = 83$

Required

$P(Woman)$

This is calculated as the number of women divided by the population of the class

i.e.

$P(Woman) = \frac{Women}{Women + Men}$

So, we have:

$P(Woman) = \frac{23}{23+83}$

$P(Woman) = \frac{23}{106}$

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2 years ago

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3 years ago

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Answer:

1. 2/25

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Step-by-step explanation:

1. P(Y∩X)

Since P(X) =2/3 , P(Y) =2/5 , and P(X|Y) =1/5, this is a conditional probability.

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