Description

This mock test of Test: Statistics- 2 for Class 9 helps you for every Class 9 entrance exam.
This contains 20 Multiple Choice Questions for Class 9 Test: Statistics- 2 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Test: Statistics- 2 quiz give you a good mix of easy questions and tough questions. Class 9
students definitely take this Test: Statistics- 2 exercise for a better result in the exam. You can find other Test: Statistics- 2 extra questions,
long questions & short questions for Class 9 on EduRev as well by searching above.

QUESTION: 1

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

Solution:

QUESTION: 2

To analyse the election results, the data is collected from a newspapers. The data thus collected is known as

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QUESTION: 3

Which of the following variables are discrete ? 1. Size of shoes, 2. Number of pages in a book, 3. Distance travelled by a train, 4. Time

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QUESTION: 4

For a given data, the difference between the maximum and minimum observation is known as its

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QUESTION: 5

In an examination, ten students scored the following marks: 60, 58, 90, 51, 47, 81, 70, 95, 87, 99. The range of this data is

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QUESTION: 6

The range of the data 20, 8, 20, 18, 16, 15, 30, 12, 22, 6, 11, 17, 25, 32, 10, 19 is

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QUESTION: 7

A data is such that its maximum value is 75 and range is 20, then the minimum value is

Solution:

Let minimum value be x ,

So,

75 - x = 20

x = 75 - 20

x = 55

QUESTION: 8

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

Solution:

QUESTION: 9

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

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QUESTION: 10

In a grouped frequency distribution, the class intervals are 1-20, 21-40, 41-60, . . , then the class width is

Solution:

QUESTION: 11

Class size of a distribution having 28, 34, 40, 46 and 52 as its class marks is

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QUESTION: 12

Given the class intervals 0-10, 10-20, 20-30,…, then 10 is considered in class

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QUESTION: 13

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

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QUESTION: 14

The class mark of the class interval 2.4-6.6 is

Solution:

QUESTION: 15

The class marks of a frequency distribution are as given below: 38, 43, 48, 53, 58. The class corresponding to the class mark 43 is

Solution:

QUESTION: 16

Class mark of a particular class is 9.5 and the class size is 6, then the class interval is

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QUESTION: 17

The class size of a distribution is 25 and the first class interval is 200-224. Then, the class marks of first two class intervals are

Solution:

QUESTION: 18

In a frequency distribution, the mid-value of a class is 60.5 and the width of the class is 10. The lower limit of the class is

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QUESTION: 19

The width of each of five continuous classes in a frequency distribution is 5 and the lower class limit of the lowest class is 10. The upper class limit of the highest class is

Solution:

QUESTION: 20

In a bar graph, 0.25 cm length of a bar represents 100 people. Then, the length of bar which represents 2000 people is

Solution:

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