Average of 3.5.7 average of 1.2.3.4.5.6.7.8.9

(3+5+7)/3=5
(1+2++3+4+5+6+7+8+9)/9=5

RELATED INFORMATIONS

1. Add a number in 1,2,3,4,5,6,7,8,9,10, so that the average number of the group is 6, then what is the increased number?
2. With 1,2,3,4,5,6,7,8,9, any three components, how many can they be composed with an average of 15? In a hurry
3. 6.16.3 6.8 6.9 6.0 6.2 6.5 what is the mean and median?
4. The average of the three numbers is 8.8, of which the second number is 9.6, which is 1.5 times of the second number, so the third number is
5. The mean, mode and median reflect the accuracy of a set of data______ Range and variance reflect the accuracy of a set of data______ . It's filling in the blanks______ If it's one blank, fill in two
6. If the mean of sample data 1, 2, 3 and 2 is a, the median is B, and the mode is C, then the variance of data a, B and C is a______ ．
7. The average and median of a group of data 8, x, 10 and 10 are equal, and the value of X is calculated
8. A group of data 6,30 a, 9,10 the median of this group of data is 7, the average is 7
9. For a set of data 8, 9, 6, m, the mean is equal to the median
10. The mean and median of a set of data cannot be equal. Right or wrong? Why? It is helpful for the responder to give an accurate answer
11. The average of the three numbers is 8.9, of which the first number is 7.9, which is 0.6 less than the third number, then the second number is 7.9______ ．
12. If the average of data x, 2x, 3x, 4x, 5x is 1, then x is (), what is the variance?
13. Given that the average of 3,2,7,2x and 8 is 6, what is the variance of this group of data
14. If the average of a group of data 5,8, X * 3,10,4 is 2x, what is the variance of this group of data? I have been troubled by this for a long time That's the third power of X!
15. The number of the four groups in class 5 of grade 2 of junior high school is 10, 10, 8, X. if the median and average of the data are known to be equal, find the median of the array The last sentence is wrong, which is "find the median of this set of data"
16. The number of the four groups in a class is as follows: 12, 12, x, 10. Given that the median of this group of data is equal to the average, what is x?
17. What is the average? How to find the average? What is the median? How to find the median? It's going to be fast tonight
18. Find the average of daily temperature difference in a week, and the data are as follows: 7,9,12,9,9,10,8
19. Given a set of data 10,9,8, x, 12, y, 10,7, the average is 10, X-Y = 2, x, y are equal to what?
20. The mode of data 9,8,6,9,5,8,9 is (), the median is (), and the average is ()