## MCQ Questions for Class 9 Maths Chapter 14 Statistics

Explore numerous MCQ Questions of Statistics Class 9 with answers provided with detailed solutions by looking below.

Question 1.

The minimum value o a data is 82 and range is 38, then the maximum value is

(a) 60

(b) 76

(c) 82

(d) 120

## Answer

Answer: (d) 120

Question 2.

In a grouped frequency distribution, the class intervals are 0-10, 10-20, 20-30, .., then the class width is

(a) 10

(b) 15

(c) 20

(d) 30

## Answer

Answer: (a) 10

Question 3.

Which of the following variables are discrete?

- Size of shoes
- Number of pages in a book
- Distance travelled by a train
- Time

(a) 1 and 2

(b) 1 and 4

(c) 1 and 3

(d) 2 and 4

## Answer

Answer: (a) 1 and 2

Question 4.

Class mark of a class interval U-L is

(a) U+\(\frac { L }{ 2 }\)

(b) U-\(\frac { L }{ 2 }\)

(c) U-L

(d) 2(U+L)

## Answer

Answer: (a) U+\(\frac { L }{ 2 }\)

Question 5.

Which of the following is not a measure of central tendency?

(a) Standard deviation

(b) Mean

(c) Median

(d) Mode

## Answer

Answer: (a) Standard deviation

Question 6.

The mode of the given data: 4, 6, 5, 9, 3, 2, 7, 7, 6, 5, 4, 9, 10, 10, 3, 4, 7, 6, 9, 9 is;

(a) 7

(b) 9

(c) 10

(d) 6

## Answer

Answer: (b) 9

Question 7.

Given the class intervals 1-10, 11-20, 21-30, ___, then 20 is considered in class

(a) 11-30

(b) 11-20

(c) 21-30

(d) 15-25

## Answer

Answer: (b) 11-20

Question 8.

A student collects information about the number of school going children in a locality consisting of a hundred households. The data collected by him is

(a) Arrayed data

(b) Primary data

(c) Secondary data

(d) Grouped data

## Answer

Answer: (b) Primary data

Question 9.

One of the sides of a frequency polygon is

(a) either of the coordinate axes

(b) the x-axis

(c) neither of the coordinate axes

(d) the y-axis

## Answer

Answer: (b) the x-axis

Question 10.

In order to draw a frequency polygon by using a histogram, which of the following statements is incorrect?

(a) Obtain the mid-points of three class- intervals of highest frequency on Y-axis, one adjacent to the first on its right and one adjacent to the last, on its left.

(b) Obtain the frequency distribution and draw a histogram representing it.

(c) Join these mid-points of the adjacent rectangles of the histogram by dotted line

(d) Obtain the mid points of the upper horizontal side of each rectangle.

## Answer

Answer: (a) Obtain the mid-points of three class- intervals of highest frequency on Y-axis, one adjacent to the first on its right and one adjacent to the last, on its left.