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प्रश्न
Explain the meaning of the following terms: Frequency
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उत्तर
Frequency: The number which tells us the number of times the variate appears in a given data is called frequency of the variate.
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संबंधित प्रश्न
Describe some fundamental characteristics of statistics.
Explain the meaning of the term Class-integral.
Explain the meaning of the term Class-size.
Explain the meaning of the term Class limits.
Find the mean, median and mode of the following data:
| Class | 0 – 50 | 50 – 100 | 100 – 150 | 150 – 200 | 200 – 250 | 250 – 300 | 300 - 350 |
| Frequency | 2 | 3 | 5 | 6 | 5 | 3 | 1 |
A survey regarding the heights (in cm) of 50 girls of a class was conducted and the following data was obtained:
| Height in cm |
120 – 130 | 130 – 140 | 140 – 150 | 150 – 160 | 160 – 170 |
| No. of girls |
2 | 8 | 12 | 20 | 8 |
Find the mean, median and mode of the above data.
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.
Explain the meaning of the following terms: Class mark
Class mark of a class is obtained by using ______.
Find the range of given data: 46, 35, 78, 90, 20, 56, 45, 76.
