Posted by **Mandy** on Wednesday, November 2, 2011 at 9:05pm.

In a city with no cars of mixed color, 30% of the cars on the road are brown. Forty percent are either brown or green, and 10% are white.

a.) What is the probability that a randomly selected car is green?

b.) What is the probability that a randomly selected car is not brown, green, or white?

Thanks a bunch for whoever can help!?

- Statistics -
**Mariella.**, Wednesday, November 2, 2011 at 9:09pm
How many cars were there altogether?

- Statistics -
**Mandy**, Wednesday, November 2, 2011 at 9:13pm
It doesn't say how many cars in total there were. Im guessing that in total these cars added up to 100%.

- Statistics -
**Mariella.**, Wednesday, November 2, 2011 at 9:16pm
a.)1/5

b.)1/4

- Statistics -
**Mandy**, Wednesday, November 2, 2011 at 9:19pm
Is there anyway that you can show me how you got that so I can understand a little better? Thanks!

- Statistics -
**Mariella.**, Wednesday, November 2, 2011 at 9:22pm
a.)40% of cars are either brown or green. Divide that by two since there are two colors. You get 20. Put that over 100=20/100. Reduce it to 2/10 which reduces to 1/5.

b.)Add all the percents together to get 80%. Subtract it from 100. 100-80=20. 20/100=1/5. So the actual answer to b is 1/5. Sorry, my mistake. :P

- Statistics -
**Mandy**, Wednesday, November 2, 2011 at 9:25pm
Thanks a bunch!

- Statistics -
**Mariella.**, Wednesday, November 2, 2011 at 9:26pm
No problem.(:

- Statistics -
**PsyDAG**, Wednesday, November 2, 2011 at 10:22pm
What about the undefined remaining 20%?

30% + 40% + 10% = only 80%

- Statistics -
**Jade**, Thursday, November 3, 2011 at 7:38pm
She DID do that.

## Answer This Question

## Related Questions

- Math - The bar graph below shows the numbers of various colors of cars owned by ...
- probability - The bumper car ride at the state fair has 3 red cars, 4 green cars...
- MATH - Detroit puts out 5 white cars to every green car. If Detroit makes 2,692,...
- statistics - Find the probability that among six randomly selected people, ...
- algebra - morgan saw 10 blue cars 8 red cars and 42 white cars drive by her ...
- math - six cars are parked in front of a car dealership. If you are looking at ...
- math - The bumper car ride at the state fair has 3 red cars, 4 green cars, and 2...
- Statistics - A car rental agency currently has 41 cars available, 28 of which ...
- Math - Three men named Greene, Grey, and Tann along with two women name Browne ...
- math (stats) - According to Masterfoods, the company that manufactures M&M’s, 12...

More Related Questions