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प्रश्न
Explain the meaning of the term Class-integral.
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
What is primary data?
Explain the meaning of the term Frequency.
Explain the difference between a frequency distribution and a cumulative frequency distribution.
Find the mean, median and mode of the following data:
| Class | 0 – 10 | 10 – 20 | 20 – 30 | 30 – 40 | 40 – 50 | 50 – 60 | 60 – 70 |
| Frequency | 4 | 4 | 7 | 10 | 12 | 8 | 5 |
Find the class marks of classes 10 -25 and 35 – 55.
Find the class marks of classes 10−25 and 35−55.
Explain the meaning of the following terms: Variate
Explain the meaning of the following terms: Class mark
The times, in seconds, taken by 150 athletes to run a 110 m hurdle race are tabulated below:
| Class | 13.8 – 14 | 14 – 14.2 | 14.2 – 14.4 | 14.4 – 14.6 | 14.6 – 14.8 | 14.8 – 15.0 |
| Frequency | 2 | 4 | 5 | 71 | 48 | 20 |
The number of athletes who completed the race in less than 14.6 seconds is:
Find the range of given data: 46, 35, 78, 90, 20, 56, 45, 76.
