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Z-scores

Authored by SALOME WALLACE-EL

Mathematics

6th - 12th Grade

CCSS covered

Used 8+ times

Z-scores
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26 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the purpose of z-scores?

to describe the exact location of a score within a distribution

to find the mean of the distribution

to describe the shape of the distribution

to find the standard deviation of the distribution

Tags

CCSS.HSS.ID.A.4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the formula to find the z-score for population?

z=X-M

z=σ-M/μ

z/M=μ

z=X-μ/σ

Tags

CCSS.HSS.ID.A.4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The average waist size for teenage males is 29 inches with a standard deviation of 2 inches. 
If waist sizes are normally distributed, determine the z-score of a teenage male with a 33 inch waist.  

2
1
-2
-1

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

μ = 70 , σ = 8 , X = 50 . Find z score

2.5
-2.5
5.2
-5.2

Tags

CCSS.HSS.ID.A.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Brian scored an 80% on a Chemistry Exam. The average on the exam was a 68%, with a standard deviation of 5%. What is Brian's z-score?

2.4

-2.4

1.1

-1.1

Tags

CCSS.HSS.ID.A.4

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees. What is the z-score for a temperature of 17 degrees?

1

1.43

-1.43

11.5

Tags

CCSS.HSS.ID.A.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1) What will be the miles per gallon for a Toyota Camry when the average mpg is 23, it has a z value of 1.5 and a standard deviation of 2?

25

20

26

68

Tags

CCSS.HSS.ID.A.4

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