Histograms with unequal class widths Quiz

Name: ______________________   Date: __________   Score: ____ / 7

7 questions. Calculator allowed. Show your working. steplyclass.com/statistics/histograms-with-unequal-class-widths/quiz/

1. 1

   Histogram: class 20-40 has frequency density 1.5, find the frequency
   1. A) −30
   2. B) 32
   3. C) 30
   4. D) 20

2. 2

   Histogram: class 10-15 has frequency density 4, find the frequency

   Answer: ____________________

3. 3

   Histogram: class 0-25 has frequency density 0.8, find the frequency
   1. A) −20
   2. B) 20
   3. C) 45
   4. D) 25

4. 4

   Histogram: class 50-80 has frequency density 0.4, find the frequency

   Answer: ____________________

5. 5

   Histogram: class 15-20 has frequency density 2.4, find the frequency
   1. A) 5
   2. B) 12
   3. C) 125
   4. D) −12

6. 6

   Histogram: class 30-60 has frequency density 1.2, find the frequency

   Answer: ____________________

7. 7

   Histogram: class 40-100 has frequency density 0.25, find the frequency
   1. A) 14
   2. B) 60
   3. C) −1500
   4. D) 15