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प्रश्न
Mean can never be a fraction.
पर्याय
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
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
Find the mean of the following data.
5.1, 4.8, 4.3, 4.5, 5.1, 4.7, 4.5, 5.2, 5.4, 5.8, 4.3, 5.6, 5.2, 5.5
_______________ is a representative value of the entire data
Find the mean of first 10 prime numbers and first 10 composite numbers
Which measures of central tendency get affected if the extreme observations on both the ends of a data arranged in descending order are removed?
If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is ______.
The marks in a subject for 12 students are as follows:
31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29
For the given data, find the mean
The following are weights (in kg) of 12 people.
70, 62, 54, 57, 62, 84, 75, 59, 62, 65, 78, 60.
- Find the mean of the weights of the people.
- How many people weigh above the mean weight?
- Find the range of the given data.
The mean age of 25 teachers in a school is 40 years. A teacher retires at the age of 60 years and a new teacher is appointed in his place. If the mean age of the teachers in this school now is 39 years, then the age (in years) of the newly appointed teacher is ______.
