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प्रश्न
What secondary data?
उत्तर
The word data means information statistical data and of two types
(i) Primary data, (ii) Secondary data
Secondary data: data which are not originally collected rather obtained from published or unpublished sources are known as secondary data.
Secondary data are collected by an individual or an institution for some purpose and are used by someone else in another context
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संबंधित प्रश्न
What is primary data?
Explain the meaning of the term Class-integral.
Explain the meaning of the term Class-mark.
The following table gives the daily income of 50 workers of a factory:
| Daily income (in Rs) | 100 – 120 | 120 – 140 | 140 – 160 | 160 – 180 | 180 – 200 |
| No. of workers | 12 | 14 | 8 | 6 | 10 |
Find the mean, median and mode of the above data.
For a certain distribution, mode and median were found to be 1000 and 1250 respectively. Find mean for this distribution using an empirical relation.
Define primary data and secondary data.
Explain the meaning of the following terms: Class mark
Class mark of a class is obtained by using ______.
Find the range of given data: 46, 35, 78, 90, 20, 56, 45, 76.
The Empirical relation between the three measures of central tendency is ______.
