WorksheetsPercentiles on Standard Normal Curve
Total questions: 6
Worksheet time: 18mins
Which z-score represents the 95th percentile?
1.645
-1.645
0.8289
-0.8289
Which z-score represents the third quartile?
0.7734
0.67
-0.67
-0.7734
Which z-scores contain the center 60% or the data?
-0.25 and 0.25
-0.84 and 0.84
-0.25 and 0.25
-0.5987 and 0.5987
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the lowest score possible to be in the top 10%?
1.28
-1.28
80.8
119.2
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the highest score possible to be in the bottom 30%?
92.2
107.8
0.52
-0.52
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What are the IQ scores that contain the center 90% of the scores?
-1.645 and 1.645
-1.28 and 1.28
75.325 and 124.675
80.8 and 119.2
