Standard Normal Distribution

A probability distribution with a mean of 0 and a standard deviation of 1, represented by the Z-score.

A Z-score indicates how many standard deviations a data point is from the mean of the data set.

Use the Z-score table to find the cumulative area corresponding to the Z-score.

The cumulative area represents the probability that a value is less than or equal to a given Z-score.

A negative Z-score indicates that the data point is below the mean.

A positive Z-score indicates that the data point is above the mean.

Two decimal places.

0.5000, which represents the mean of the distribution.

The area under the curve represents the total probability, which equals 1.

It means the data point is 1.78 standard deviations below the mean.