Posted by **Courtney** on Friday, November 9, 2007 at 10:05pm.

Suppose a Normal model describes the fuel efficiency of cars currently registered on your state. The mean is 24 mpg, with a standard deviation of 6 mpg.

-Describe the fuel efficiency of the worst 20% of all cars.

I know that you convert 20% into decimal form to get .2 and put that number in for Invnorm to get -.84, but how do I get the fuel efficiency of the worst 20% of cars from there.

## Answer This Question

## Related Questions

- Stats - Suppose a Normal model describes the fuel efficiency of cars currently ...
- precaculus - 1. Gas Mileage Problem The EPA efficiency rating Ina particular ...
- Precalculus - 1. Gas Mileage Problem The EPA efficiency rating Ina particular ...
- Precalculus - 1. Gas Mileage Problem The EPA efficiency rating Ina particular ...
- statistics - The manufacturer of a new compact car claims the miles per gallon (...
- Statistics - The manufacturer of a new compact car claims the miles per gallon (...
- statistics - Ala rge fleet of cars is maintained with an average of 26 mpg. 50 ...
- math - A car manufacturing company is interested in finding the average fuel ...
- stats - A car manufacturing company is interested in finding the average fuel ...
- statistics - . An automobile is selling a new model car with an advertised in&#...

More Related Questions