Statistics
posted by Belinda .
If the mean of a set of data is 20.00 and 12.20 has a zscore of 1.30, then the standard deviation must be: What formula would you use to determine this?
Respond to this Question
Similar Questions

math (statistics
John's zscore on a college entrace exam is 1.3. If the raw scores have a mean of 480 and a standard deviation of 70 points, what is his raw score? 
psy
Eric has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to his job. One day it took Eric 21 minutes to get to work. You would use the formula … 
Stastics
When we convert xvalue to z score and use Standard Normal distribution, which of the following statements is true? 
statisticsnormal distribution
a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? 
statistics
if the mean of a set of data is 23.00 and 10.00 has a zscore of 1.30, then the standard deviation must be? 
statistics
Eric has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to his job. One day it took Eric 21 minutes to get to work. You would use the formula … 
statistics
set of data is normally distributed with a mean of 200 and standard deviation of 50. · What would be the standard score for a score of 300? 
statistics
If the mean of a set of data is 21.00, and 6.00 has a z score of –1.50, then the standard deviation must be 
college statistics
a set of data is normally distributed with a mean of 1000 and a standard deviation of 100.what would be standard score for a score of 900.what percent of scores is betyween 1000 and 900.what would be percentile rank for a score of … 
statistics
2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule?