Time: 20 Minutes
Subject: Statistics
Instructions:
- All questions are compulsory.
- 1 Minutes of reading time will be provided.
1. A class interval is 20–30 with frequency 10. What
is the class mark?
(a) 20
(b) 25
(c) 30
(d) 10
2. In a pie chart, total angle is 360°. If a category has
90°, its percentage is:
(a) 20%
(b) 25%
(c) 30%
(d) 40%
3. A histogram has unequal class intervals. What
should be used?
(a) Frequency
(b) Frequency density
(c) Cumulative frequency
(d) Mean
4. A dataset records number of students in classes.
This is:
(a) Continuous data
(b) Discrete data
(c) Both
(d) Qualitative
5. Heights of students are measured. This is an
example of:
(a) Discrete variable
(b) Continuous variable
(c) Attribute
(d) None
6. If class limits are 10–20, what is the class width?
(a) 5
(b) 10
(c) 20
(d) 15
7. If frequency = 20 and class width = 5, frequency
density is:
(a) 4
(b) 5
(c) 10
(d) 15
8. In an ogive, the y-axis represents:
(a) Frequency
CA/CMA Foundation
Module : Statistical representation of data
Total Marks: 20/40
(b) Cumulative frequency
(c) Class width
(d) Mean
9. A survey collects gender data. This is:
(a) Quantitative
(b) Qualitative
(c) Continuous
(d) Numerical
10. If total frequency is 100 and a class has 25
observations, its relative frequency is:
(a) 0.25
(b) 0.50
(c) 0.75
(d) 1.00
11. A class interval has no upper limit. It is called:
(a) Closed class
(b) Open-end class
(c) Exclusive class
(d) Inclusive class
12. A teacher records marks of students. This data is:
(a) Qualitative
(b) Quantitative
(c) Attribute
(d) None
13. If lower limit = 10 and upper limit = 20, class
boundaries are:
(a) 10 and 20
(b) 9.5 and 20.5
(c) 9 and 21
(d) 10.5 and 19.5
14. In a bar diagram, bars represent:
(a) Continuous data
(b) Frequencies
(c) Class width
(d) Mean
15. If 144° is used in a pie chart, remaining percentage
is:
(a) 40%
(b) 50%
(c) 60%
(d) 70%
16. A company records daily sales amounts. This data
is:
(a) Discrete
(b) Continuous
(c) Attribute
(d) None
17. Midpoint of class 30–40 is:
(a) 30
(b) 35
(c) 40
(d) 25
18. Which diagram is best to find mode graphically?
(a) Pie chart
(b) Bar chart
(c) Histogram
(d) Ogive
19. If cumulative frequency is used, which graph is
drawn?
(a) Histogram
(b) Bar diagram
(c) Ogive
(d) Pie chart
20. If frequency doubles but class width remains same,
frequency density will:
(a) Decrease
(b) Remain same
(c) Double
(d) Become zero
Answers
1. (b)
2. (b)
3. (b)
4. (b)
5. (b)
6. (b)
7. (a)
8. (b)
9. (b)
10. (a)
11. (b)
12. (b)
13. (b)
14. (b)
15. (c)
16. (b)
17. (b)
18. (c)
19. (c)
20. (c)