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Leto [7]
3 years ago
15

QUESTION 4

Mathematics
1 answer:
makvit [3.9K]3 years ago
7 0

Answer:

4.1.1) x=1

4.1.2) I need more information

4.2)  y=2

Step-by-step explanation:

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This year the CDC reported that 30% of adults received their flu shot. Of those adults who received their flu shot,
Vlad [161]

Using conditional probability, it is found that there is a 0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

Conditional Probability

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:

  • Event A: Person has the flu.
  • Event B: Person got the flu shot.

The percentages associated with getting the flu are:

  • 20% of 30%(got the shot).
  • 65% of 70%(did not get the shot).

Hence:

P(A) = 0.2(0.3) + 0.65(0.7) = 0.515

The probability of both having the flu and getting the shot is:

P(A \cap B) = 0.2(0.3) = 0.06

Hence, the conditional probability is:

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.06}{0.515} = 0.1165

0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

To learn more about conditional probability, you can take a look at brainly.com/question/14398287

7 0
2 years ago
The size of angle BAC is:<br><br>B= 75 degrees<br><br>A= 55 degrees<br><br>C=?
Shtirlitz [24]

Answer:

C=20degrees

Step-by-step explanation:

75 -55=20

<em>or </em>20+55=75

So the degrees of Angle C is 20

4 0
2 years ago
In a class of 55 students, 15 students liked Maths but not English and 18 students liked English but
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Answer:

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5 0
3 years ago
Determine the value of x in the diagram​
Romashka-Z-Leto [24]

Answer:

x=144

Step-by-step explanation:

We got x and x/4 right

If you put x on the same line as x/4, you gon see that x+x/4=180

Then, just do your algebra and get x=144

8 0
3 years ago
What is the length of the hypotenuse of the triangle?
Leni [432]

Answer:

Answer is C

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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