Question

The z-tables (table A in your textbook) has no negative z values, this means____.

a. the table can only be used with positive z values
b. the table can be used with both positive and negative z values
c. the table can be used with both positive and negative z values because it is skewed
d. none of these

Answer 1

The z-table can only be used with positive z-values.

Step-by-step explanation:

The z-table (Table A in your textbook) represents the area under the normal curve to the left of a given z-score. The values in the table are for positive z-scores only.

This means that the table can only be used with positive z-values (option a).