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प्रश्न
Explain the meaning of the term Class-integral.
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उत्तर
Class interval: In the data each group into which raw data is considered is called a
class-interval.
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संबंधित प्रश्न
Describe some fundamental characteristics of statistics.
Explain the meaning of the term Frequency.
Find the class marks of classes 10 – 25 and 35 – 55.
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Find the mean.
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The daily income of a sample of 50 employees are tabulated as follows:
| Income (in Rs.): | 1-1200 | 201 -400 | 401-600 | 601 - 800 |
| No.of employees : | 14 | 15 | 14 | 7 |
Find the mean daily income of employees.
The monthly income of 100 families are given as below :
| Income in ( in ₹) | Number of families |
| 0-5000 | 8 |
| 5000-10000 | 26 |
| 10000-15000 | 41 |
| 15000-20000 | 16 |
| 20000-25000 | 3 |
| 25000-30000 | 3 |
| 30000-35000 | 2 |
| 35000-40000 | 1 |
Calculate the modal income.
Find the class marks of classes 10−25 and 35−55.
Explain the meaning of the following terms: Class mark
Can the experimental probability of an event be a negative number? If not, why?
