Algebra Examples

$0 < z < 3$

Find the value in a look up table of the probability of a z-score of less than $0$ .

$z = 0$ has an area under the curve $0$

Find the value in a look up table of the probability of a z-score of less than $0.49866982$ .

$z = 3$ has an area under the curve $0.49866982$

To find the area between the two z-scores, subtract the smaller z-score value from the larger one. For any negative z-score, change the sign of the result to negative.

$0.49866982 - (0)$

Subtract $0$ from $0.49866982$ .

$0.49866982$