
We looked up the Z Score for 2.158 in our Normal Distribution Tables with Z Scores so you don't have to!
First, note that a Z Score of 2.158 means that your statistic is 2.158 standard deviation to the right of the mean on a bell curve. Here is a Bell Curve so you can visualize where 2.158 is on a bell curve.

We used three different distribution tables, and we will give you the 2.158 Z Score probability, percentile, and explanations for all three.
Cumulative from mean
This gives you the probability of the area from the mean to your Z Score. The cumulative from-mean probability and percentile for a 2.158 Z score is displayed here:
0.48453608410089
= 48.4536%
Cumulative
This gives you the probability of the area below the Z Score. The cumulative probability and percentile for a 2.158 Z score is displayed here:
0.98453608410089
= 98.4536%
Complementary cumulative
This gives you the probability of the area above the Z Score. The complementary cumulative probability and percentile for a 2.158 Z Score is displayed here:
0.01546391589911
= 1.5464%
Z Score Table Lookup
Here you can submit Z Scores between -3.999 and 3.999 for us to look up in our Normal Distribution Tables.
Z Score 2.159
Here is the next Z Score we looked up in our Normal Distribution Tables.
The percentiles on this page are rounded to the nearest 4 decimals.
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