z-scores Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/statistics/z-scores/quiz/

1. 1

   Calculate z-score of 62, mean 50, sd 8
   1. A) 1.5
   2. B) 55.75
   3. C) 15
   4. D) −1.5

2. 2

   Calculate z-score of 70, mean 60, sd 5

   Answer: ____________________

3. 3

   Calculate z-score of 80, mean 80, sd 6

   Answer: ____________________

4. 4

   Find the value with z = 2, mean 50, sd 4.

   Answer: ____________________

5. 5

   Calculate z-score of 34, mean 40, sd 4
   1. A) −15
   2. B) 1.5
   3. C) −1.5
   4. D) 24

6. 6

   Calculate z-score of 72, mean 65, sd 4

   Answer: ____________________

7. 7

   Find the value with z = −1.5, mean 60, sd 4.
   1. A) 5.4
   2. B) 54
   3. C) −54
   4. D) 540

8. 8

   Calculate z-score of 140, mean 100, sd 16

   Answer: ____________________

9. 9

   Calculate z-score of 47, mean 40, sd 6
   1. A) 11.7
   2. B) 40.33
   3. C) −1.17
   4. D) 1.17

10. 10

    Find the value with z = 2.5, mean 150, sd 12.

    Answer: ____________________