Ask a New Question

Given a mean of 60 and a standard divation of 7, what proportion of scores is between 45 and 78? What is the formula for determining this proportion?

2 answers

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores.

asdf

Similar Questions

Given a mean of 60 and a standard divation of 7, what percentate of scores ae 73 or less? What is the formula for determining
1. 0 answers
For a normal distribution with a mean of m = 80 and a standard deviation of s = 20, find the proportion of the population
1. 1 answer
scores on the SAT critical reading test in 2013 follow a normal distribution with a mean score of 496 and a standard deviation
1. 1 answer
A distribution of 800 test scores in a biology course was approximately normally distributed with a mean of 35 and a standard
1. 0 answers

more similar questions