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Bell curves
Definitions
Z-scores
Percentiles
100
68%
What is the population within one Standard Deviation of the mean?
100
Is a graph of normal distribution with a large round peak.
What is a bell curve?
100
98.93%
Is the Z-score is 2.3 what is it's percentage?
100
2.3
What is the Z-score for 99.01%?
200
99.7%
What is the population within three Standard Deviations of the mean?
200
A measure of how spread out the values are from the mean?
What is Standard Deviation?
200
38.21%
If the Z-score is -0.3 what is its percentage?
200
3.0
What is the Z-score for 99.87%?
300
95%
What is the population within two Standard Deviations within the mean?
300
Is a percentage of the population that falls below you.
What is Percentiles?
300
92.51%
If the Z-score is 1.4 what is its percentage?
300
-0.7
What is the Z-score for 22.06%?
400
6 single presents
How many single present's are in a normal bell curve?
400
Is how many standard deviations a value is from the mean.
What is Z-scores?
400
99.46%
If the Z-score is 2.5 what is its percentage?
400
-1.0
What is the Z-score for 15.87%?