Advertisements
Advertisements
प्रश्न
Mean can never be a fraction.
विकल्प
True
False
Advertisements
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`
APPEARS IN
संबंधित प्रश्न
Solve any two of the following.
In some families in a colony the daily purchase of milk in litre is 1, 3, 2, 2, 4, 1, 2, 2, 1. Find the mean, median and mode of daily purchase of milk.
The` "n"^(th)` term of the A. P. 3, 8, 13, 18, ............ is 148. Find n
The mean of 35 observations is 20, out of which mean of first 18 observations is 15 and mean of last 18 observation is 25. Find the 18th observation.
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 mean of five numbers is 50, out of which mean of 4 numbers is 46, find the 5th number:
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`
The number of members in the 40 families in Bhilar are as follows:
1, 6, 5, 4, 3, 2, 7, 2, 3, 4, 5, 6, 4, 6, 2, 3, 2, 1, 4, 5, 6, 7, 3, 4, 5, 2, 4, 3, 2, 3, 5, 5, 4, 6, 2, 3, 5, 6, 4, 2. Prepare a frequency table and find the mean of members of 40 families.
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
Arithmetic mean of 10 observations was found to be 22. If one more observation 44 was to be added to the data, what would be the new mean?
Find the mean and mode of 6, 11, 13, 12, 4, 2
