Normal cut-offs Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/university-statistics/normal-cut-offs/quiz/

1. 1

   Normal mean 50, sd 10: value with 90% below it
   1. A) 0.9
   2. B) 628
   3. C) 6.28
   4. D) 62.8

2. 2

   Normal mean 100, sd 15: top 10%

   Answer: ____________________

3. 3

   Normal mean 50, sd 10: value with 5% above it
   1. A) 33.55
   2. B) 664.5
   3. C) 66.45
   4. D) 0.95

4. 4

   Normal mean 80, sd 6: value with 50% below it

   Answer: ____________________

5. 5

   Normal mean 100, sd 10: top 2.5%
   1. A) 11960
   2. B) 119.6
   3. C) 80.4
   4. D) 0.975

6. 6

   Calculate 75th percentile, mean 500, sd 100

   Answer: ____________________

7. 7

   Normal mean 75, sd 10: bottom 5%
   1. A) 585.5
   2. B) 5.855
   3. C) 0.05
   4. D) 58.55

8. 8

   Calculate 99th percentile, mean 100, sd 15

   Answer: ____________________

9. 9

   Normal mean 64, sd 3: bottom 15%
   1. A) 6.088
   2. B) 60.88
   3. C) 0.15
   4. D) 608.8

10. 10

    Calculate 33rd percentile, mean 50, sd 10

    Answer: ____________________