Advertisements
Advertisements
प्रश्न
Find the mean of first six natural numbers.
उत्तर
First six natural numbers are: 1, 2, 3, 4, 5, 6
∴ Mean =`(1+2+3+4+5+6)/6` .....(Here n = 6)
= `21/6`
= 3.5
APPEARS IN
संबंधित प्रश्न
A boy scored following marks in various class tests during a term; each test being marked out of 20.
15, 17, 16, 7, 10, 12, 14, 16, 19, 12 and 16
What are his total marks?
The daily wages of 80 workers in a building project are given below :
| Wages (Rs) | No.of workers |
| 30-40 | 6 |
| 40-50 | 10 |
| 50-60 | 15 |
| 60-70 | 19 |
| 70-80 | 12 |
| 80-90 | 8 |
| 90-100 | 6 |
| 100-110 | 4 |
Using graph paper, draw an ogive for the above distribution. Use your ogive, to estimate :
(1) the mediam wages of workers
(2) the percentage of workers who earn more than Rs 75 a day.
(3) the upper quartile wages of the workers
(4) the lower quartile wages of the workers
(5) Inter quartile range
The mean of a certain number of observations is 32. Find the resulting mean, if the observation is decreased by 20%.
Find the mean of: first five odd natural numbers
Find the median of 80, 48, 66, 61, 75, 52, 45 and 70
Find the mean and the median of: 5, 8, 10, 11,13, 16, 19 and 20
Find the median of the following sets of numbers.
15, 8, 14, 20, 13, 12, 16
Find the median of the data: 24, 36, 46, 17, 18, 25, 35
The marks scored by the students in social test out of 20 marks are as follows: 12, 10, 8, 18, 14, 16. Find the mean and median?
Find the median of the given data if the mean is 4.5.
5, 7, 7, 8, x, 5, 4, 3, 1, 2
