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प्रश्न
Let x, y, z be three observations. The mean of these observations is ______.
पर्याय
`(x xx y xx z)/3`
`(x + y + z)/3`
`(x - y - z)/3`
`(x xx y + z)/3`
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उत्तर
Let x, y, z be three observations. The mean of these observations is `underlinebb((x + y + z)/3)`.
Explanation:
Here, x, y and z be three observations.
We know that,
Mean = `"Sum of observations"/"Number of observations"`
= `(x + y + z)/3`
APPEARS IN
संबंधित प्रश्न
Following table shows the points of each player scored in four games:
| Player | Game 1 | Game 2 | Game 3 | Game 4 |
| A | 14 | 16 | 10 | 10 |
| B | 0 | 8 | 6 | 4 |
| C | 8 | 11 | Did not play | 13 |
Now answer the following questions:
- Find the mean to determine A’s average number of points scored per game.
- To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?
- B played in all the four games. How would you find the mean?
- Who is the best performer?
The number of Science and Mathematics projects submitted by Model high school, Nandpur in last 20 years at the state level science exibition is:
2, 3, 4, 1, 2, 3, 1, 5, 4, 2, 3, 1, 3, 5, 4, 3, 2, 2, 3, 2. Prepare a frequency table and find the mean of the data.
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 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 maximum mark obtained
The mean of the data 12, x, 28 is 18. Find the value of x
The mean of three numbers is 40. All the three numbers are different natural numbers. If lowest is 19, what could be highest possible number of remaining two numbers?
The mean of a data is defined as ______.
Mean of the observations can be lesser than each of the observations.
Find the mean of the first ten even natural numbers.
In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?
