Friday
April 18, 2014

Homework Help: statistics

Posted by whitney on Sunday, June 3, 2012 at 10:39am.

Reading placement scores for a particular college are normally distributed with a mean of 72 and a standard deviation of 7.

a) draw a sketch of the reading placement scores for students at this college. be sure to mark the mean and also to mark one and two standard deviations from each side of the mean.

b) 95% of students at this college have a reading placement score between ______ and ______

c) Sammy's reading placement score is 82. What is his z-score?

d) Find the proportion of students at this college who have a reading placement score of at least 82.

e) Elisa's z-score is -1.5. What is her reading placement score?

f) How high does one's reading placement score have to be so that a student is in the 85th percentile?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - The average score on a particular exam is determined to be 84.35 ...
statistics - Scores on the ACT college entrance exam are Normally distributed ...
statistics college - SATI SCORES AROUND THE NATION HAVE A MEAN SCORE AROUND 500 ...
Statistics - Each year, thousands of college seniors take the Graduate Record ...
business statistics - The scores on a standardized exam are normally distributed...
statistics - Assume that a set of test scores is normally distributed with a ...
statistics - SAT scores are normally distributed with a mean of 1518 and a ...
statistics - Given a population of scores is normally distributed with mu of 110...
statistics - Assume that a set of test scores is normally distributed with a ...
Statistics - Given that a population of scores is normally distriibuted with u=...

Search
Members