Posted by **Sunshine** on Thursday, March 21, 2013 at 12:44am.

Scores on a visual perception test are normally distributed with a mean of 2020 and a standard deviation of 250.

a)If one subject is randomly selected and tested, find the probability of a score greater than 1800

b)if 50 subjects are randomly selected and tested fid the probability that the sample mean is between 2000 and 2100

## Answer this Question

## Related Questions

- Statistics - Scores on a visual perception test are normally distributed with a ...
- statistics - Scores on the ACT test are normally distributed with a mean of 21.1...
- statistics - Membership in Mensa requires an IQ score above 131.5. Nine ...
- math - Test scores on a university admissions test are normally distributed, ...
- Math Helppp - Scores for men on the verbal portion of the SAT-I test are ...
- Finite math - Scores for men on the verbal portion of the SAT-I test are ...
- statistics - Can you please tell me how to solve for the following? Pedro took ...
- statistics - A final exam in Math 157 is normally distributed and has a mean of ...
- Statistics - 5. Scores on a recent national statistics exam were normally ...
- statistics - Scores on a test are normally distributed with a mean of 68.2 and a...

More Related Questions