Statistics- 2 - Free MCQ Practice Test with solutions, Class 9 Maths

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

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

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

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

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

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

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

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

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

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

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

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

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

The class mark of the class interval 2.4-6.6 is

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

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

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

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

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