Which of the following qualifies as primary data?

Census data obtained from the official census website

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Attendance data of different groups of students obtained from attendance records for a comparative study

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Height of the students in a class measured by you yesterday

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The admission stats of a college obtained from its website

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Solution

The correct option is C Height of the students in a class measured by you yesterday
Data which is collected first-hand by directly taking a survey or measurement is called primary data. Thus data collected by you from the students directly is primary data.

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Similar questions

Q. Classify the data as primary or secondary data.

(i) Number of students in our class
(ii) Number of fans in our school
(iii) Electricity bills of our house for last two years
(iv) Election results obtained from television or newspapers.
(v) Literacy rate figures obtained from educational survey.

Classify following information as primary or secondary data.

(i) Information of attendance of every student collected by visiting every class in a school.

(ii) The information of heights of students was gathered from school records and sent to the head office, as it was to be sent urgently.

(iii) In the village Nandpur, the information collected from every house regarding students not attending school.

(iv) For science project, information of trees gathered by visiting a forest.,

The marks obtained by the students of a class , in a exam which was out of 50 mark given below

$\begin{matrix} Marks & Number of students 5 & 1 7 & 2 11 & 2 16 & 3 21 & 5 24 & 6 28 & 3 32 & 5 34 & 8 39 & 6 43 & 4 45 & 2 49 & 3 \end{matrix}$

(i) Find the mean for the ungrouped data.

(ii) Represent the same data as grouped data, with class interval of width = 10

Q. The following are the marks obtained in Maths by students of Class 8:
51, 94, 34, 20, 50, 81, 81, 90, 76, 34, 51, 86, 93, 99, 26, 54, 85, 71, 88, 40, 44, 56, 55, 57, 78, 53, 81, 78, 65, 78.

Group the data and find out how many students scored between 60 and 70?

Q. The marks obtained (out of 20) by 30 students of a class in a test are given below:
7, 10, 8, 16, 13, 14, 15, 11, 18, 11, 15, 10, 7, 14, 20, 19, 15, 16, 14, 20, 10, 11, 14, 17, 13, 12, 15, 14, 16, 17.
Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval in 3–8 (including 2 and excluding 8). From the frequency distribution table so obtained, draw a histogram.

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Which of the following qualifies as primary data?

The correct option is C Height of the students in a class measured by you yesterdayData which is collected first-hand by directly taking a survey or measurement is called primary data. Thus data collected by you from the students directly is primary data.

The correct option is C Height of the students in a class measured by you yesterday
Data which is collected first-hand by directly taking a survey or measurement is called primary data. Thus data collected by you from the students directly is primary data.