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.

To know more about probability , refer here :

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Related Questions

pleaseeee help i need to turn thiis in and i have no idea what it is!!

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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:

PLS HELP!!

Solve for a side in right triangles

BC = ???

round your answer to the nearest hundredth

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Answer:

39 centimeters

Step-by-step explanation:

I am very sorry if I'm wrong! ✿✿✿

Prolly wrong but I tried

Which angles in the picture are NOT supplementary?
2 and 3; 1 and 4
1 and 2; 2 and 3
1 and 3; 2 and 4
4 and 1; 3 and 4

Answers

Answer:

1 and 3; 2 and 4

Step-by-step explanation:

Supplementary angles add up to 180 degrees, which is a straight line.

we can see that angles 2 and 3 make the / line, as do 1 and 4

1 and 2 make up the \ line, while, as mentioned above, 2 and 3 make /

4 and 1 is the same as 1 and 4 so they still create / and angles 3 and 4 make the \

HELP ME PLEAAAAAAAAAASSSSSSSSE

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Answer:

jwjsjsjwujksikwpqñk1972

Sarah and Ethan are plotting points on a
coordinate grid. Sarah plots the point A(-2. – 3)
and Ethan plots the point B(1.2). What is the
distance between the two points?

Answers

Answer:

srry buddy

I didn't get the answer ✌️✌️

Which is the median of this set of data?
18
22 11 21 78 11
A 20.5
B 21
C 18
D) 19.5

Answers

19.5 is the median. u put all the number in order from least to greatest and find which number is in the middle. since two are in the middle u add the two number together then divide by 2 to find the center of those two numbers. so the answer is therefore D

A coin is flipped 10 times and lands on heads 8 times. What is the theoretical probability that the coin will land on tails on the next flip?

20%
80%
50%
100%

Answers

Answer:

pls mark brainlest Even though it landed on heads 8/10 times, ther's still a 50% chance that it will land on tails.

whats her errors and whats the soulution​

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

34x = 17

x = 17/34

x = 1/2

Hope it helps!

Marion is driving between two towns that are close together. If she drives 1/5 the distance of the trip in 15 minutes, what is her rate per hour?

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.

The rate per hour will then be:

= 15 ÷ 1/5

= 15 × 5

= 75 minutes

The rate per hour will then be 75 minutes per hour.

The question is up there ☝

Answers

Answer:

D

Step-by-step explanation:

The parabola is translated down 2 units.

I might be wrong tho.

Plsss help me ASAP plss

Answers

The answer is: 9 lte u

At the end of the summer, I decide to drain the swimming pool
(which has 1500 gallons of water in it). I noticed that it drains
faster when there is more water in the pool. That was interesting
to me, so I decided to measure the rate at which it drains. I found
that it was draining at a rate of 1% every minute.
How long will it take to empty the pool?

Answers

20% is the answer. 20%

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

Write 9 x 1 + 3 x 1/10 + 4 x 1/ 1000

Answers

Answer:

A

Step-by-step explanation:

The cubed root for 50

Answers

Answer:

125000

Step-by-step explanation:

Answer:

125000 is your answer

Step-by-step explanation:

pick me brainliest alex

1. 50% of 82
2. 10% of 2,350
3. 80% of 40
4. 160% of 30
5. 250% of 2
6. 105% of 260
7. 0.5% of 12
8. 40% of 16.5
9. 75% of 8.4
Help please !!

Answers

Answer:

1. 41

2. 235

3. 32

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

The quadrilaterals JKLM and PQRS are similar.
Find the length x of PQ.
P
3
27
M
s
6
x
3.6
K
5
R
45

Answers

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

Which of the following statements is not true?

-3.2 > -4.1
-1.5 = -1.50
-0.6 < 0.3
-3.7 > -3.1

Answers

Answer:

-3.7>-3.1

Step-by-step explanation:

because it's negative and numbers that used to be greater are smaller when their negative

(1) One apple weighs 75 grams and one orange weighs 40 grams. The weight of x apples and y oranges, is​

Answers

Answer:

Given,

Weight of each apple =75 gm

Weight of each orange =40 gm

So,

Weight of x apples =75x gm

Weight of y oranges =40y gm

Thus,

Weight of x apples and y oranges =(75x+40y) gm

I hope it's helpful!

If x is the least common multiple of the set {6, 8, 12} and y is the greatest common factor
of the set {20, 42, 72), what is the value of x/y ?

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

PLZ HELP WILL MARK BRAINIEST

Today, everything at a store is on sale. The store offers a 20% discount.

The regular price of a T-shirt is $16.

If the regular price of an item is x dollars, what is the discount price in dollars?

a.) 0.2x
b.) 0.8x
c.) 1.2x
d.) none of the above

Answers

Answer:

D?

Step-by-step explanation:

What graph represents the equationy = 2x – 3?

Answers

Answer:

linear graph

Step-by-step explanation:

because the equation of the line is straight

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

You deposit $100 in a savings account. The account earns 11% simple interest per year.
a. What is the interest earned after 10 years?
The interest earned is $
after 10 years.
b. What is the balance after 10 years?
The balance is $
after 10 years.

Answers

Answer:

a. ----> $10b. ----> $110

Step-by-step explanation:

principle ( p ) = $100time ( t ) = 10 years rate ( r ) = 11%simple interest = (p × r × t)÷ 100 = ( $100 × 11 × 10 )÷ 100 = 11000 ÷ 100 = $110

interest = simple interest - principle interest = $110 - $100 = $10

MARK ME AS BRAINLIST

PLZ FOLLOW ME

in a yaz game, Gina won 3 games, lost 5, later won 6 and finally lost 4, what was the balance of the game?​

Answers

Answer:

0

Step-by-step explanation: 3-5=-2+6=4-4=0

Farias car is worth 22000. Of the value of the car decreases by 8% what will her car be worth next year?

Answers

Answer:

$17600

Step-by-step explanation:

Solve for x
x^2-2x-2=0

Answers

I believe it’s x=1+√3,1−√3

NO ONE IS HELPINNGGGG PLZZZZ 30 PTS +brainliest

Answers

Answer:

studyyy that is allll

Step-by-step explanation:

study

Answer:

360°

Step-by-step explanation:

It kind of seems like a trick question, but as far as I'm concerned, it's more or less the same question as the 1st one you answered.

What are the answers for these,

Answers

3.5 m = 350 cm

9.072 km = 9072 m

0.07 kg = 70 g

70.4 l = 70400 ml

79 m = 0.079 km

6 g = 6000 kg

5,870 m = 5.78 km

61,900 g = 61.9 kg

hallar el color de x en la siguiente figura​

Answers

Step-by-step explanation:

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

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