Let us understand how to calculate the Z-score, the Z-Score Formula and use the Z-table with a simple real life example. Q: 300 college student’s exam scores are tallied at the end of the semester.

Find the percentage of values below a given z-score in a standard normal distribution.

STANDARD NORMAL DISTRIBUTION: Table Values Represent AREA to the LEFT of the Z score. -3.9 -3.8 -3.7 -3.6 -3.5 . -3.4 -3.3 -3.2 -3.1 -3.0 . -2.9 -2.8 -2.7 -2.6 -2.5 . -2.4 -2.3 -2.2 -2.1 -2.0 . -1.9 -1.8 …

t Distribution Critical Values −6 −4 −2 0 2 4 6 ... χ2 Distribution Critical Values

This interactive Z table displays probabilities (areas) under the standard normal distribution curve for specific z-scores. It helps determine the probability of values falling within particular ranges in …

Free z-table with cumulative probabilities for the standard normal distribution. Find z-scores, critical values & probabilities instantly. The z-table shows the cumulative probability P (Z ≤ z) for the …

Here is the data behind the bell-shaped curve of the Standard Normal Distribution

This z-table chart is a probability distribution plot displaying the standard normal distribution. The shaded area and its probability correspond to the z-score.

In statistics, a standard normal table, also called the unit normal table or Z table, [1] is a mathematical table for the values of Φ, the cumulative distribution function of the normal distribution.

Jan 7, 2026 · The rows and columns of the table define the z-score and the table cells represent the area. For example, the z-score 1.50 corresponds to the area 0.9332, which is the probability that a …