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प्रश्न
Mean can never be a fraction.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
e.g. Mean between `1/4` and `1/6`
= `("Sum of" 1/4 and 1/6)/n` ...[∵ n(number of terms) = 2]
= `(1/4 + 1/6)/2`
= `((6 + 4)/24)/2`
= `10/24 xx 1/2`
= `5/24`
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संबंधित प्रश्न
Find the mean of the first five whole numbers.
The mean of 5 observations is 50. One of the observations was removed from the data, hence the mean became 45. Find the observation which was removed.
The following table shows the number of saplings planted by 30 students. Fill in the boxes and find the average number of saplings planted by each student.
| No. of saplings (Scores) xi |
No. of students (frequency) fi |
fi x xi |
| 1 | 4 | 4 |
| 2 | 6 | `square` |
| 3 | 12 | `square` |
| 4 | 8 | `square` |
| N = `square` | ∑fixi = `square` |
Mean `bar "x"` = `square/"N"`
= `square/square`
= `square`
∴ The average number of trees planted `square`
In a week, temperature of a certain place is measured during winter are as follows 26°C, 24°C, 28°C, 31°C, 30°C, 26°C, 24°C. Find the mean temperature of the week
If the mean of the following data is 20.2, then find the value of p
| Marks | 10 | 15 | 20 | 25 | 30 |
| No. of students | 6 | 8 | p | 10 | 6 |
The mean of a set of numbers is `bar(X)`. If each number is multiplied by z, the mean is
The average of the marks 2, 9, 5, 4, 4, 8, 10 is ____________
The marks of 14 students in a science test out of 50 are given below. 34, 23, 10, 45, 44, 47, 35, 37, 41, 30, 28, 32, 45, 39 Find the mean mark
The mean of runs scored by a cricket team in the last 10 innings is 276. If the scores are 235, 400, 351, x, 100, 315, 410, 165, 260, 284, then find the runs scored in the fourth innings
Let x, y, z be three observations. The mean of these observations is ______.
