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प्रश्न
Find the range of given data: 46, 35, 78, 90, 20, 56, 45, 76.
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उत्तर
Given data is 46, 35, 78, 90, 20, 56, 45, 76.
Here, Highest value = 90
Lowest value = 20
We know, Range = Highest Value – Lowest Value
= 90 – 20
= 70
Hence, the range is 70.
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संबंधित प्रश्न
What do you understand by the word “statistics” in
(i) Singular form
(ii) Plural form?
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Explain the meaning of the term Class-size.
Explain the meaning of the term True class limits.
Find the mean, median and mode of the following data:
| Marks obtained | 25 – 35 | 35 – 45 | 45 – 55 | 55 – 65 | 65 – 75 | 75 – 85 |
| No. of students | 7 | 31 | 33 | 17 | 11 | 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 | Total |
| No. of girls | 2 | 8 | 12 | 20 | 8 | 50 |
Find the mean, median and mode of the above data.
The table below shows the daily expenditure on food of 30 households in a locality:
| Daily expenditure (in Rs) | Number of households |
| 100 – 150 | 6 |
| 150 – 200 | 7 |
| 200 – 250 | 12 |
| 250 – 300 | 3 |
| 300 – 350 | 2 |
Find the mean and median daily expenditure on food.
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.
The distribution X and Y with total number of observations 36 and 64, and mean 4 and 3 respectively are combined. What is the mean of the resulting distribution X + Y?
The observation 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95 are arranged in ascending order. What is the value of x if the median of the data is 63?
If the median of `x/5, x/4, x/2, x and x/3`, where x > 0, is 8, find the value of x.
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The daily income of a sample of 50 employees are tabulated as follows:
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| No.of employees : | 14 | 15 | 14 | 7 |
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