During a flu epidemic, 35% of the school's students have the flu. Of those with the flu, 90% have high

Mathematics

1 answer:

frutty [35]3 years ago

8 0

Answer: 0.8015

Step-by-step explanation:

Let F= event that a person has flu

H= event that person has a high temperature.

As per given,

P(F) =0.35

Then P(F')= 1- 0.35= 0.65 [Total probability= 1]

P(H | F) = 0.90

P(H|F') = 0.12

By Bayes theorem, we have

$P(F|H)=\dfrac{P(F)\timesP(H|F)}{P(F)\timesP(H|F)+P(F')\timesP(H|F')}\\\\=\dfrac{0.35\times0.90}{0.35\times0.90+0.65\times0.12}\\\\=\dfrac{0.315}{0.315+0.078}\approx0.8015$

Required probability = 0.8015

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viva [34]

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Lola is making greeting cards, which she will sell by the box at an arts fair. She paid $50 for a booth at the fair, and the mat

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<h3> How did we figure this out?</h3>

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We are going to use 50, 8 and 10 to find are answer.

Therefore, we are going to divide the numbers:

$\boxed{50/10}$