Sick computers: Let V be the event that a computer contains a virus, and let W be the event that a computer contains a worm.
Suppose P(V) = 0.47, P (W) = 0.34, P (V and W) = 0.07
(a) Find the probability that the computer contains either a virus or a worm or both.
(b) Find the probability that the computer does not contain a virus.

Answers

Answer 1

(a) The probability that the computer contains either a virus or a worm or both can be found using the formula:

P(V or W) = P(V) + P(W) - P(V and W)

Substituting the given values, we get:

P(V or W) = 0.47 + 0.34 - 0.07

P(V or W) = 0.74

Therefore, the probability that the computer contains either a virus or a worm or both is 0.74.

(b) The probability that the computer does not contain a virus can be found using the complement rule:

P(not V) = 1 - P(V)

Substituting the given value, we get:

P(not V) = 1 - 0.47

P(not V) = 0.53

Therefore, the probability that the computer does not contain a virus is 0.53.

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Related Questions

If x is the least common multiple of the set {6, 8, 12} and y is the greatest common factor
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Answers

Answer:

12

Step-by-step explanation:

The least common multiple of {6,8,12} is 24. This can be intuitively figured by noting that any multiple of 12 is a multiple of 6 and that 12 is 1.5x larger than 8. That means we only have so multiple 12 by 2 and 8 by 3 for them to be equal. The GCF of {20,42,72} is 2 as the prime factorization of 20 is 2x2x5 and 42 is 2x3x7. That means even without having to check 72 (which is clearly even so 2 is a factor), we know that 2 is the greatest common factor that they could share. So X/Y = 24/2 = 12

You deposit $250 in an account. The account earns $20 simple interest in 4 years. What is the annual interest rate?

Answers

Answer:

5.00

Step-by-step explanation:

20/4 years = 5 per year

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Answer:

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Step-by-step explanation:

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360°

Step-by-step explanation:

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Step-by-step explanation:

Answer:

125000 is your answer

Step-by-step explanation:

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Answers

Answer:

she messed up at -17=34x

Step-by-step explanation:

she added 8x to each side but she was actually supposed to subtract

The error is 8(x - 3) + 7 = 2x(13) and -17 = 34x.

4 - 17 = -13, not 13

8x - 17 = 26x

-17 = 26x -8

-17 = 18x ( it should be like this, but this is still wrong because it should -26)

The solution is:

8(x - 3) + 7 = 2x(4 - 17)

8(x - 3) + 7 = 2x(-13)

8x - 24 + 7 = -26x

8x - 17 = -26x

8x + 26x = 17

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x = 17/34

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Hope it helps!

The question is up there ☝

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D

Step-by-step explanation:

The parabola is translated down 2 units.

I might be wrong tho.

Need help
What is the equation of a line that passes through the point (0, -2) and has a slope of -3?

y = -2
y = -2x - 3
y = -3x - 2
y = -3

Answers

Answer:

y = -3x - 2

Step-by-step explanation:

Since the line passes through the point (0, -2), -2 is the y-intercept

Using the slope-intercept form for a line we have

y = -3x - 2

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Step-by-step explanation:

The quadrilaterals JKLM and PQRS are similar.
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M
s
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x
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Answer:

I believe the answer is 45.

Step-by-step explanation:

This is just my opinion. However I could be wrong.

Answer:

5.4

Step-by-step explanation:

Scale factor = 2.7/3 = 0.9

x = 6*0.9 = 5.4

hallar el color de x en la siguiente figura​

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Step-by-step explanation:

[tex]105 (2 \times - (11)[/tex]

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Answer:

linear graph

Step-by-step explanation:

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Answers

Answer:

1 and 3; 2 and 4

Step-by-step explanation:

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Answer: You will need 250 boxes of popcorn to meet your $300 goal.

Step-by-step explanation:

Answer:

5 boxes of popcorn makes 300 usd

Step-by-step explanation:

1. 50% of 82
2. 10% of 2,350
3. 80% of 40
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Answers

Answer:

1. 41

2. 235

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4. 48

5. 5

6. 273

7. .06

8. 6.6

9. 6.3

Step-by-step explanation:

Answer:

1=41

2=235

3=32

4=48

5=5

6=273

7=0.06

8=6.6

9=6.3

You deposit $100 in a savings account. The account earns 11% simple interest per year.
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after 10 years.
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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

Given,

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Weight of each orange =40 gm

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Answers

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Step-by-step explanation:

At the end of the summer, I decide to drain the swimming pool
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Answers

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20%
80%
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Answers

Answer:

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Which of the following statements is not true?

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Answers

Answer:

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Answers

Answer: 75 minutes per hour.

Step-by-step explanation:

From the question, we are informed that Marion is driving between two towns that are close together and that she drives 1/5 the distance of the trip in 15 minutes.

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Answers

3.5 m = 350 cm

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