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givi [52]
3 years ago
7

The odds are 13 to 7 against rain tomorrow, what is the probability it will rain tomorrow? ​

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer:

3 in 10

Step-by-step explanation:

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A high school guidance counselor determined the following information regarding students and their likelihood of playing a sport
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Conditional Probability

Given two events A and B (not excluding), the probability that A occurs given that B has occurred is called a <em>conditional probability</em> and is calculated as:

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

Where P(A∩B) is the probability that A and B occur simultaneously and P(B) is the probability that B occurs.

Now with the given data, we must find the values of the required probabilities.

30% of the students play a sport (S), this means that:

70% of the students don't play a sport (NS).

65% of the students have a job.

Note that there could be students who both play sports and have a job.

Of the 30% of the students who play a sport, 50% have a job. This means that:

15% of the students play a sport and don't have a job

15% of the students play a sport AND have a job

65% - 15% = 50% of the students have a job and don't play a sport

That last number is the numerator of the equation given above:

P(A∩B) = 0.5

The event B corresponds to students that don't play a sport (NS), thus:

P(B) = 0.7

Thus we have:

P(A|B)=\frac{0.5}{0.7}=\frac{5}{7}

The required probability is 5/7 or 0.7143

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1 year ago
What is the decimal form of 8 and 39/40
steposvetlana [31]
8.975 is the correct answer
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Can you translate the measurements to (cups, teaspoons, tablespoons etc.)
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Answer:

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Milk:

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4 0
2 years ago
8x + 34. What does X equal
rosijanka [135]

Answer: x=-4.25

Step-by-step explanation:

First you put it in to y= mx+b form.

0=8x+34

Then you subtract 34 from both sides

-34=8x

Then you divide 8 from both sides

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x=-4.25

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Please give me the correct answer ​
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Step-by-step explanation:

Just count it

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