Assume that the car lot contains 20 percent Lincolns, 45 percent Porches, and 35 percent BMWs. Of the Lincol? I still can't solve the problem. I did it step by step thoroughly but still get the wrong answer. Can someone help? thanks!

Assume that the car lot contains 20 percent Lincolns,

45 percent Porches, and 35 percent BMWs. Of the Lincolns,

70 percent have two airbags, 60 percent of the Porches have

two airbags, and 90 percent of the BMWs have two airbags. Furthermore,

70 percent of the Lincolns, 40 percent of the Porches, and

30 percent of the BMWs are white. The property of being white is

independent from having two airbags. You are assigned a car at random.

If the car has two airbags and is white, what is the probability that it is a Lincoln?

0.3261 = 32.61% probability that it is a Lincoln

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

In which

P(B|A) is the probability of event B happening, given that A happened.

is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Has two airbags and is white.

Event B: It is a Lincoln.

Probability of a car having two airbags and being white.

This is:

70%*70% of 20%(Lincolns).

60%*40% of 45%(Porches).

90%*30% of 35%(BMWs). So

Probability of a car having two airbags and being white, and being a Lincoln:

70%*70% of 20%(Lincolns).

So

If the car has two airbags and is white, what is the probability that it is a Lincoln?

0.3261 = 32.61% probability that it is a Lincoln

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!