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प्रश्न
Explain the meaning of the following terms: True Class Limits
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उत्तर
True Class limits: When we group a number of variates together then the lowest value of the variate and the highest value of the variate form the class limits.
Let the class intervals for some grouped data be 10 - 20, 20 - 30, 30 - 40 etc. This is an exclusive frequency distribution. For the class 20 - 30, 20 is the lower limit, while 30 is the upper limit. Here the limits are actual and are called true class limits.
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संबंधित प्रश्न
Explain the meaning of the term Class-size.
Explain the meaning of the term True class limits.
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The time, in seconds, taken by 150 athletes to run a 100 m hurdle race are tabulated below:
| Time (sec.) | 13 – 14 | 14 – 15 | 15 – 16 | 16 – 17 | 17 – 18 | 18 – 19 |
| Number of Athletes | 2 | 4 | 5 | 71 | 48 | 20 |
The number of athletes who completed the race in less than 17 seconds is:
