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प्रश्न
Explain the meaning of the term Class-size.
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उत्तर
Class-size: The different between the true upper limit and lower limit is called the class
size of that class.
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संबंधित प्रश्न
Describe some fundamental characteristics of statistics.
Explain the meaning of the term Class limits.
Explain the meaning of the term True class limits.
Define cumulative frequency distribution.
The table below shows the daily expenditure on food of 30 households in a locality:
| Daily expenditure (in Rs) | Number of households |
| 100 – 150 | 6 |
| 150 – 200 | 7 |
| 200 – 250 | 12 |
| 250 – 300 | 3 |
| 300 – 350 | 2 |
Find the mean and median daily expenditure on food.
While calculating the mean of a given data by the assumed-mean method, the following values were obtained.
`A = 25, sum f_i d_i = 110, sum f_i = 50`.
Find the mean.
In the following data, find the values of p and q. Also, find the median class and modal class.
| Class | Frequency (f) | Cumulative frequency (cf) |
| 100 – 200 | 11 | 11 |
| 200 – 300 | 12 | p |
| 300 – 400 | 10 | 33 |
| 400 – 500 | q | 46 |
| 500 – 600 | 20 | 66 |
| 600 – 700 | 14 | 80 |
Explain the meaning of the following terms: Frequency
Class mark of a class is obtained by using ______.
The Empirical relation between the three measures of central tendency is ______.
