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प्रश्न
Explain the meaning of the term True class limits.
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उत्तर
True class limits: if classes are inclusive eg 15-19, 20-24, 25-29, 30-34...........
Then, true lower limit of class = upper limit of class -0.5
And true upper limit of class = upper limit of class +0.5
Example: true limits of the class 15-19 are 14.5 and 19.5
But if because classes are exclusive use like 10-20, 20-30, 30-40..........
Here class limits and true class limits are the same.
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संबंधित प्रश्न
Describe some fundamental characteristics of statistics.
Which of the two – the primary or the secondary data – is more reliable and why?
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 |
In a class test, 50 students obtained marks as follows:
| Marks obtained | 0 – 20 | 20 – 40 | 40 – 60 | 60 – 80 | 80 – 100 |
| Number of Students | 4 | 6 | 25 | 10 | 5 |
In a class test, 50 students obtained marks as follows:
Explain the meaning of the following terms: Variate
Explain the meaning of the following terms: True Class Limits
Explain the meaning of the following terms: Frequency
The times, in seconds, taken by 150 athletes to run a 110 m hurdle race are tabulated below:
| Class | Frequency |
| 13.8 - 14 | 3 |
| 14 - 14.2 | 4 |
| 14.2 - 14.4 | 6 |
| 14.4 - 14.6 | 69 |
| 14.6 - 14.8 | 48 |
| 14.8 - 15.0 | 20 |
The number of athletes who completed the race in less than 14.6 seconds is?
The monthly pocket money of ten friends is given below:
₹ 80, ₹ 65, ₹ 35, ₹ 65, ₹ 50, ₹ 30, ₹ 60, ₹ 35, ₹ 65, ₹ 30
What is the lowest pocket money?
The monthly pocket money of ten friends is given below :
₹ 80, ₹ 65, ₹ 35, ₹ 65, ₹ 50, ₹ 30, ₹ 60, ₹ 35, ₹ 65, ₹ 30
What is the highest pocket money?
