Saturday
March 28, 2015

Homework Help: statistics

Posted by Jean on Sunday, April 13, 2008 at 1:26pm.

Scores on a test are normally distributed with a mean of 68.2 and a standard deviation of 10.4. Estimate the probability that among 75 randomly selscted students, at least 20 of them score greater that 78.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistic - solve the problem :score a test are normally distributed with a mean...
Statistics - 5. Scores on a recent national statistics exam were normally ...
statistics - A final exam in Math 157 is normally distributed and has a mean of ...
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 ...
statistics probability - Alice earned a score of 940 on an IQ test.The mean test...
statistics - Suppose that SAT scores among U.S. college students are normally ...
statistics - Scores on a visual perception test are normally distributed with a ...
Statistics - Scores on a visual perception test are normally distributed with a ...
business statistics - Your statistics instructor wants you to determine a ...

Members