Z-Table Practice

Which choice below is NOT true about Z-Tables?

• ALWAYS shows the percentage below a z-score

• Percentages on negative z-score side are all 50% and less

• Percentages on the positive z-score side are all 50% and more

• Some percentages may come out to be negative

Tags

CCSS.HSS.ID.A.4

What percentage of a normal distribution will fall BELOW a z-score of .76

Tags

CCSS.HSS.ID.A.4

What percentage of a normal distribution will fall ABOVE a z-score of 1.09?

Tags

CCSS.HSS.ID.A.4

What percentage of a normal distribution will fall IN BETWEEN z-scores of 1.50 and -1.50?

Tags

CCSS.HSS.ID.A.4

What Z-SCORE will have 1.29% of the data falling below it?

(Turn 1.24% back into a decimal, find that decimal on the z-table and find the corresponding z-score)

Tags

CCSS.HSS.ID.A.4

Michelle's SAT score falls 2.12 standard deviations ABOVE the mean

What percentage of SAT scores will fall BELOW Michelle's?

Tags

CCSS.HSS.ID.A.4

Oscar's GPA falls 1.04 standard deviations BELOW the mean

What percentage of GPA's will be BELOW Oscar's GPA?

Tags

CCSS.HSS.ID.A.4

The z-table gives the percent of data at or below a z-score.

• True

• Sometimes true, sometimes false

• False

Tags

CCSS.HSS.ID.A.4

Edwin's SAT score falls .17 standard deviations BELOW the mean

Adrianna's SAT score falls .86 standard deviations ABOVE the mean

What percentage of SAT scores will fall BETWEEN Edwin and Adrianna?

Tags

CCSS.HSS.ID.A.4

What Z-SCORE will come closest to falling into the 96th percentile of a normal distribution?

(Remember to turn % into a decimal, find closest decimal you can, and then see what z-score is)

Tags

CCSS.HSS.ID.A.4