Advertisements
Advertisements
प्रश्न
Find the mean of first 10 even natural numbers.
उत्तर
Given that,
The first 10 natural numbers be 2,4,6,8,10,12,14,16,18,20
∴ Mean = `"Sum of all Numbers "/"Total Numbers"`
`= (2 +4 +6 +8 +10 +12 +14 +16 +18 +20)/10 ` = `110/10`
`= 110/10` = 11
Mean = 11
APPEARS IN
संबंधित प्रश्न
The following number of goals were scored by a team in a series of 10 matches:-
2, 3, 4, 5, 0, 1, 3, 3, 4, 3
Find the mean, median and mode of these scores.
Explain, by taking a suitable example, how the arithmetic mean alters by
(i) adding a constant k to each term
(ii) subtracting a constant k from each them
(iii) multiplying each term by a constant k and
(iv) dividing each term by a non-zero constant k.
Find the missing value of p for the following distribution whose mean is 12.58.
| x | 5 | 8 | 10 | 12 | p | 20 | 25 |
| f | 2 | 5 | 8 | 22 | 7 | 4 | 2 |
Find the median of the following data (1-8)
83, 37, 70, 29, 45, 63, 41, 70, 34, 54
If the mean of five observations x, x+2, x+4, x+6, x+8, is 11, then the mean of first three observations is
A hockey player has scored following number of goals in 9 matches. 5, 4, 0, 2, 2, 4, 4, 3, 3.
Find the mean, median and mode of the data.
To draw a histogram to represent the following frequency distribution:
| Class interval | 5 – 10 | 10 – 15 | 15 – 25 | 25 – 45 | 45 – 75 |
| Frequency | 6 | 12 | 10 | 8 | 15 |
the adjusted frequency for the class 25 – 45 is:
If the mean of the observations: x, x + 3, x + 5, x + 7, x + 10 is 9, the mean of the last three observations is ______.
There are 50 numbers. Each number is subtracted from 53 and the mean of the numbers so obtained is found to be –3.5. The mean of the given numbers is ______.
Mean of 50 observations was found to be 80.4. But later on, it was discovered that 96 was misread as 69 at one place. Find the correct mean.
