Z Score -3.428

We looked up the Z Score for -3.428 in our Normal Distribution Tables with Z Scores so you don't have to!

First, note that a Z Score of -3.428 means that your statistic is -3.428 standard deviation to the left of the mean on a bell curve. Here is a Bell Curve so you can visualize where -3.428 is on a bell curve.

We used three different distribution tables, and we will give you the -3.428 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 -3.428 Z score is displayed here:

0.499695977270095
= 49.9696%

Cumulative
This gives you the probability of the area below the Z Score. The cumulative probability and percentile for a -3.428 Z score is displayed here:

0.000304022729905373
= 0.0304%

Complementary cumulative
This gives you the probability of the area above the Z Score. The complementary cumulative probability and percentile for a -3.428 Z Score is displayed here:

0.999695977270095
= 99.9696%

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 -3.427
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.