Sunday
April 20, 2014

Homework Help: statistics

Posted by Tommy on Thursday, February 7, 2008 at 11:42pm.

The distribution of scores on the SAT is approx. normal with mu= 500 and std dev=100.

a)what proportion of the population have SAT scores above 650?
b)what proportion of of the population have SAT scores below 540?
c)what is the minimum SAT score needed to be in the highest 20% of the population?
d)what SATE scores separates the top 60% from the rest of the distribution?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - The distribution of scores is normal with a = 100 and =15. What...
stats - SAT math scores approx. follow a normal distribution, with mean 500 and ...
statistics - (population) A normal distribution has a mean of 80 and a std dev ...
Statistics - Among first year students at a certain university, scores on the ...
statistics/please check calculations - questions reads as follows: sat scores ...
statistics - sat scores around the nation tend to have a mean score of about 500...
statistics - Sat scores l around the nation tend to have a mean score around 500...
statistics - sat scores around the nation tend to have a mean score around 500, ...
statistics - Suppose a population distribution of SAT scores has population mean...
CRJ303-Statistics question - Re-worded from the "Study Questions" part of ...

Search
Members