probability distribution, Basic Statistics

In a mathematics examination the average grade was 82 and the standard deviation was 5. all students with grade from 88 to 94 received grade of B. if the grade are approximately normally distributed and 8 students received a B grade , how many students took the examination?
Posted Date: 9/14/2012 3:03:41 PM | Location : United States





please send the answer please
Posted by cecile abarquez | Posted Date: 1/24/2013 5:45:37 AM


Related Discussions:- probability distribution, Assignment Help, Ask Question on probability distribution, Get Answer, Expert's Help, probability distribution Discussions

Write discussion on probability distribution
Your posts are moderated
Related Questions
why death rates are standardlized

Hierarchical Clustering   Five, two-dimensional data points are shown below: x y -0.43 1.19 -1.66 1.1

jay can remember only the first 4 digits of his friends phone number. he also knows that the number has 7 digits and the last digit is not a zero. if jay were to dial all of the po

Read the article “Apple turns over entire inventory every five days.”1 It is not surprising that, the success of managing inventory can lead to the success of a firm’s operational

Explain definition of bad debt reserve and provision in terms of accounts receivable likely to be uncollected. Bad debt reserve provision Bad debt reserve provision is a amount

Q. What is Univariate and Bivariate Data? Ans. Univariate data is data gathered about a single variable. Univariate studies could include a study of the amount paid by Am

.A study of long term phone calls made from general electricss corporate headquarters in fairfeild, conneticuit, revealed the length of the calls, in minutes follows the normal pro

Suppose that an individual has unearned income of $V and can choose how many hours she works per week at a wage of $w per hour.  Assume that she has a total of 110 hours of time to

A probability distribution is partially given in the following table with the additional information that the even values of X are equally likely. Determine the missing entries in

how to draw less than ogive