
We looked up the Z Score for 2.27 in our Normal Distribution Tables with Z Scores so you don't have to!
First, note that a Z Score of 2.27 means that your statistic is 2.27 standard deviation to the right of the mean on a bell curve. Here is a Bell Curve so you can visualize where 2.27 is on a bell curve.

We used three different distribution tables, and we will give you the 2.27 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 2.27 Z score is displayed here:
0.488396208478097
= 48.8396%
Cumulative
This gives you the probability of the area below the Z Score. The cumulative probability and percentile for a 2.27 Z score is displayed here:
0.988396208478097
= 98.8396%
Complementary cumulative
This gives you the probability of the area above the Z Score. The complementary cumulative probability and percentile for a 2.27 Z Score is displayed here:
0.011603791521903
= 1.1604%
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 2.271
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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