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Art [367]
3 years ago
10

Of all the yoga students in a particular area, 20% study with Patrick and 80% study with Carl. We also know that 8% of the yoga

students study with Patrick and are female, while 66% of the students study with Carl and are female. What is the probability that a randomly selected yoga student is female, given that the person studies yoga with Carl?
A) .35
B) .56
C) .69
D) .83
Mathematics
1 answer:
Doss [256]3 years ago
8 0
P = \text{study with Patrick}
C = \text{study with Carl}
F = \text{female}

\mathbb P(F\mid C)=\dfrac{\mathbb P(F\cap C)}{\mathbb P(C)}=\dfrac{0.66}{0.80}=0.825\approx0.83
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Answer:

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Step-by-step explanation:

Given the triangle MNO which is extended through point O to point P, we are given the followings;

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∠OMN=(2x+20)

Exterior angle;

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To find x, we will use the theorem, "The sum of the interior angles is equal to the exterior"

Hence;

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3 years ago
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Stephanie needs to cover her yard with 4103/4ft2 of soil she has enough for 125 ft2 in one bag and 65 ft 2 in another bag how mu
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Answer:

Stephanie requires 835.75 square feet more amount of soil to cover her yard.

Step-by-step explanation:

Given:

Total square feet of yard she need to cover with soil = \frac{4103}{4}\ ft^2

\frac{4103}{4}\ ft^2 can be rewritten as 1025.75 square feet.

Total square feet of yard she need to cover with soil = 1025.75\ ft^2

Amount of soil in one bag = 125\ ft^2

Amount of soil in other bag = 65\ ft^2

Total Amount of soil she has is equal to sum of Amount of soil in one bag and Amount of soil in other bag.

Framing the equation we get;

Total Amount of soil she has= 125+65 = 190\ ft^2

Now We need to find the Amount of soil she required more to cover the yard.

Amount of soil she required more is equal to difference of Total Amount of soil she has and Total square feet of yard she need to cover with soil.

Framing the equation we get;

Amount of soil she required more = 1025.75-190= 835.75\ ft^2

Hence Stephanie requires 835.75 square feet more amount of soil to cover her yard.

6 0
3 years ago
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3 years ago
Heart failure is due to either natural occurrences (89%) or outside factors (11%). Outside factors are related to induced substa
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Answer:

a) 11% probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors.

b) 0.0871 = 8.71% probability that third patient with heart failure that enters the emergency room is the first one due to outside factors.

c) The mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors is 9.09.

Step-by-step explanation:

We have these following probabilities:

89% probability that a patient has heart failure due to natural occurrences.

11% probability that a patient has heart failure due to outside factors.

A) What is the probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors?

We assume that causes of heart failure between individuals are independent, which means that the probabilities are the same for each patient. So:

11% probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors.

B) What is the probability that third patient with heart failure that enters the emergency room is the first one due to outside factors?

First two due to natural occurrences, each with 89% = 0.89 probability.

Third due to outside factors, with 11% = 0.11 probability. So

0.89*0.89*0.11 = 0.0871

0.0871 = 8.71% probability that third patient with heart failure that enters the emergency room is the first one due to outside factors.

C) What is the mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors?

11% with outside factors, so the mean number of patients before the first with outside factors is given by

m = 1/0.11 = 9.09

The mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors is 9.09.

4 0
3 years ago
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