The monthly pocket money (in rupees) of six friends is given below: 40, 50, 65, 25, 70, 35. The highest and lowest pocket money are respectively ____.

Correct! Wrong!

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Given,40, 50, 65, 25, 70, 35 The data given above is raw data, so by arranging in ascending order we will get 25, 35, 40, 50, 65, 70 the highest pocket money = Rs 70 the lowest pocket money = Rs 25 Hence, the highest pocket money and the lowest pocket money are respectively Rs 70 and Rs 25

Runs made by 10 batsmen in the last 10 matches are 43, 69, 75, 94, 33, 38, 29, 85, 76, 39. The number of batsmen who scored more than half-century is ____.

Correct! Wrong!

Given 43, 69, 75, 94, 33, 38, 29, 85, 76, 39 are the runs made by batsmen. Hence, the number of batsmen who scored more than half-century = 5

A Bar graph is a pictorial representation of the numerical data by a number of bars (rectangles) of uniform width erected vertically (or horizontally) with equal spacing between them.

Correct! Wrong!

A bar graph is a pictorial representation of the numerical data by a number of bars (rectangles) of uniform width erected vertically (or horizontally) with equal spacing between them.

The frequency of 30 in the given data, 23, 30, 37, 30, 30, 43, 48, 59, 30, 39 is ____.

Correct! Wrong!

Given values are 23, 30, 37, 30, 30, 43, 48, 59, 30, and 39 Frequency of 30 is 4 (∵30 repeated 4 times)

The number of numbers which are greater than 5 and less than 13 from the data 4, 5, 7, 3, 8, 10, 11, 12, 15, 17, 16 is _____

Correct! Wrong!

Given 4, 5, 7, 3, 8, 10, 11, 12, 15, 17, 16 Numbers greater than 5 and less than 13 are 7, 8, 10, 11, 12 hence, the required number is 5.

The blood groups of 10 students of class X are recorded as follows: A, B, O, O, AB, A, AB, O, AB, O. The frequency of blood group O is____.

Correct! Wrong!

Given A, B, O, O, AB, A, AB, O, AB, O Hence, the frequency of O is 4 (∵O is repeated 4 times)

The primary source of basic data is ____.

Correct! Wrong!

The data collected from a person through interview is called source. Hence, the primary source of basic data is Questionnaire.

Frequency polygon is formed by joining the mid points of the adjacent rectangles in a histogram with line segments.

Correct! Wrong!

Frequency polygon is formed by joining the mid points of the adjacent rectangles in a histogram with line segments.

The frequency of 9 in the following data: 5, 12, 9, 6, 11, 9, 4, 9, 3, 8, 9, 9 and 10 is ____.

Correct! Wrong!

Given 5, 12, 9, 6, 11, 9, 4, 9, 3, 8, 9, 9, 10 Frequency of 9 is 5 (∵ 9 appears 5 times in the given data).

When the information was collected by the investigator herself or himself with a definite objective in her or his mind, the data obtained is called primary data.

Correct! Wrong!

When the information was collected by the investigator herself or himself with a definite objective in her or his mind, the data obtained is called primary data.

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CBSE Class 9th Math 14 - Statistics MCQs
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