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In-s [12.5K]
3 years ago
13

Which number is an irrational number?

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0

Answer:

3.5

Step-by-step explanation:

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$120 with 25% taken off of it would be $90 !
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2. Lupita deposits $34,890 in an account that pays 3.2% simple interest. She keeps the money in
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34890*3.2%*3=$3349.44

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What is the solution set of the following equation? -8x + x + 15 = -7 x + 12 ​
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Consider the probabilities of people taking pregnancy tests. Assume that the true probability of pregnancy for all people who ta
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Using conditional probability, it is found that there is a 0.8462 = 84.62% probability that a woman who gets a positive test result is truly pregnant.

<h3>What is Conditional Probability?</h3>

Conditional probability is the probability of one event happening, considering a previous event. The formula is:

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

In which

  • P(B|A) is the probability of event B happening, given that A happened.
  • P(A \cap B) is the probability of both A and B happening.
  • P(A) is the probability of A happening.

In this problem, the events are:

  • Event A: Positive test result.
  • Event B: Pregnant.

The probability of a positive test result is composed by:

  • 99% of 10%(truly pregnant).
  • 2% of 90%(not pregnant).

Hence:

P(A) = 0.99(0.1) + 0.02(0.9) = 0.117

The probability of both a positive test result and pregnancy is:

P(A \cap B) = 0.99(0.1)

Hence, the conditional probability is:

P(B|A) = \frac{0.99(0.1)}{0.117} = 0.8462

0.8462 = 84.62% probability that a woman who gets a positive test result is truly pregnant.

You can learn more about conditional probability at brainly.com/question/14398287

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2 years ago
Will guys only notice u for ur looks, is that the first thing they care abt?
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yyyyyyyyyyyyyYeeeeeeeeeeESsssss

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Read 2 more answers
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