MCQs Questions for Class 10 Maths Chapter 14 Statistics
In this 21^{st} century, Multiple Choice Questions (MCQs) play a very important role to prepare for a competitive examination. CBSE board also gives a number of MCQs questions in board examinations. In most of the competitive examinations, only MCQ Questions are asked.
In future, if you want to prepare for competitive examination, then you should focus on the MCQs questions. Thus, let’s solve these MCQs questions to make our foundation strong.
In this post, you will find 18 MCQs questions for class 10 maths chapter 14 statistics.
MCQs Questions for Class 10 Maths Chapter 14 Statistics
1. While
computing mean of the grouped data, we assume that the frequencies are:
(A)
evenly distributed over all the
classes
(B)
centered at the class marks of the classes
(C)
centered at the upper limits of the classes
(D) centered at the lower limits of the classes
Answer: B
2. One of the methods for
determining mode is
(A) Mode = 2 Median – 3 Mean
(B) Mode = 3 Median – 2 Mean
(C) Mode = 2 Mean – 3 Median
(D) Mode = 3 Mean – 2 Median
Answer: B
3. Cumulative frequency curve is
also called
(A) histogram
(B) ogive
(C) bar graph
(D) median
Answer: B
4.
If the arithmetic mean of x, x + 3, x + 6, x + 9 and x + 12 is 10, then x = ?
(A)
1
(B)
2
(C)
6
(D) 4
Answer: D
5. The algebraic sum of the
deviations of a frequency distribution from its mean is always
(A) greater than zero
(B) less than zero
(C) zero
(D) a non-zero number
Answer: C
6. If the mode and mean of a
data are 12k and 15A, then the median of the data is
(A) 12k
(B) 14k
(C) 15k
(D) 16k
Answer: B
7. If
the mean of first n natural numbers is 5n/9, then n =?
(A)
6
(B)
7
(C)
9
(D) 10
Answer: C
8. For the following
distribution
Marks |
0 – 10 |
10 – 20 |
20 – 30 |
30 – 40 |
40 – 50 |
No. of students |
3 |
9 |
13 |
10 |
5 |
the number of
students who got marks less than 30 is
(A) 13
(B) 25
(C) 10
(D) 12
Answer: B
9. The abscissa of the point of
intersection of the less than type and of the more than type cumulative
frequency curves of a grouped data gives its
(A) mean
(B) median
(C) mode
(D) all the three above
Answer: B
10. If
35 is removed from the data, 30, 34, 35, 36, 37, 38, 39, 40, then the median
increases by:
(A)
2
(B)
1.5
(C)
1
(D) 0.5
Answer: D
11. Mean of 100 items is 49. It
was discovered that three items which should have been 60, 70, 80 were wrongly
read as 40, 20, 50 respectively. The correct mean is
(A) 48
(B) 49
(C) 50
(D) 60
Answer: C
12.
The median when it is given that mode and mean are 8 and 9 respectively, is:
(A)
8.57
(B)
8.67
(C)
8.97
(D) 9.24
Answer: B
13. For the following
distribution
C.I. |
0 – 10 |
10 – 20 |
20 – 30 |
30 – 40 |
40 – 50 |
F |
20 |
30 |
24 |
40 |
18 |
the sum of lower limits of the modal class and the median
class is
(A) 20
(B) 30
(C) 40
(D) 50
Answer: D
14. The median of set of 9
distinct observations is 20.5. If each of the largest 4 observations of the set
is increased by 2, then the median of the new set
(A) is increased by 2
(B) is decreased by 2
(C) is two times of the original number
(D) Remains the same as that of the original
set.
Answer: D
15. Which of the following cannot
be determined graphically?
(A) Mean
(B) Median
(C) Mode
(D) None of these
Answer: A
16. The cumulative frequency
curve is also called
(A) histogram
(B) ogive
(C) bar graph
(D) median
Answer: B
17. The mode is the
(A) middle most frequent value
(B) least frequent value
(C) maximum frequent value
(D) none of these
Answer: C
18. The mode of the numbers 2,
3, 4, 4. 3, 5, 3, 6 is ______.
(A) 2
(B) 4
(C) 3
(D) 5
Answer: C