1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Margaret [11]
3 years ago
8

You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.75. Wi

th water it will die with probability 0.4. You are 82 % certain the neighbor will remember to water the plant. You come back from the vacation and the plant is dead. What is the probability the neighbor forgot to water it?
Mathematics
1 answer:
Dafna1 [17]3 years ago
4 0

Answer:

0.2915

Step-by-step explanation:

Let W represent water and D represent Dying probability

W = water

D = die

 

->If with water, it will die with probability 0.4

P(W & D) = 0.82 x 0.4 = 0.328

->Without water the plant will die with probability 0.75

P(W ' & D) = 0.18 x 0.75 = 0.135

Taking sum of the above values with water and without water.

P(D) = P(W & D) +  P(W ' & D) = 0.4643

P(W ' | D) = P(W ' & D) / P(D)

= 0.135 /0.463

= 0.2915 ≈ 29.15%

Thus, the probability the neighbor forgot to water is 0.2915

You might be interested in
40% of 50 is what number
nikitadnepr [17]

20

Step-by-step explanation:

Step 1:

Let the number be 50 and to find 40% of  50 is given interms of expression as follows

To express the percentage the following strategy is used

Eg: 40% = 40/100

∴ To express 40% of 50 is

(40/100)*50

Step 2:

On simplification the above expression we could get

0.4*50

= 20

4 0
2 years ago
Read 2 more answers
After 7 days, people saw the video.
EleoNora [17]

Answer:

137,257

Step-by-step explanation:

4 0
2 years ago
You have 3 five dollar bills and 4 ten dollar bills in your pocket. If you pull out 2 bills, what is the probability they are bo
prohojiy [21]

Answer: I think its 4%

Step-by-step explanation: 3+4=7 7/2=3.5

3 0
2 years ago
Read 2 more answers
Anita and Joelle bowled together and their combined total score for one game was 425 points. Anita’s score was 40 less than twic
wariber [46]
Call Anita's score "y" and Joelle's score "x".

1) "<span>their combined total score for one game was 425 points"
</span>Therefore x+y=425

2)"Anita’s score was 40 less than twice Joelle’s." 
Therefore y=2x-40

Substitute:
x+2x-40=425

Solve:
3x=465
x=155

Backsubstitute:
y=2x-40
y=2(155)-40
y=270

6 0
3 years ago
Which of the following statements incorrectly describes the line segment XY?
sveta [45]
Correct answer is C.

There are infinitely many possible paths between X and Y.
7 0
3 years ago
Other questions:
  • Can an isosceles triangle be a right angle
    13·1 answer
  • When solving -1/8 (x + 35) = −7, what is the correct sequence of operations?
    5·1 answer
  • What is the product of (2x2 + 5x - 3) and (3x +7)?
    8·1 answer
  • Which of the following equations is of a parabola with a vertex at (1, -2)?
    15·1 answer
  • Use the remainder theorem to find which of the following is NOT a factor of x^3 – 4x^2 – 4x + 16.
    8·1 answer
  • What is the result of subtracting the second equation from the first? -3x+2y=7 -3x-2y=4
    8·1 answer
  • What is 2/3 - 5 9th in fractions
    5·2 answers
  • Write your answer in simplest radical form​
    8·1 answer
  • The population of a certain city can be modeled by P = 130,000(1.018)t.
    12·1 answer
  • What percent is 24 out of 36
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!