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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
Concentration trend
Degree of dispersion
RELATED INFORMATIONS
- 1. 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______ ．
- 2. The average and median of a group of data 8, x, 10 and 10 are equal, and the value of X is calculated
- 3. A group of data 6,30 a, 9,10 the median of this group of data is 7, the average is 7
- 4. For a set of data 8, 9, 6, m, the mean is equal to the median
- 5. 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
- 6. The mean, median and mode of a set of data will not be the same,
- 7. What level does the mean median mode represent?
- 8. Average is a characteristic number of a group of data (). Median can be used to represent (). Mode can be used to represent a group of data The last one is not finished
- 9. How to find the average, median and mode of a group of data?
- 10. The mean, median and mode all reflect a set of data______ The statistics of the model
- 11. 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
- 12. 6.16.3 6.8 6.9 6.0 6.2 6.5 what is the mean and median?
- 13. 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
- 14. 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?
- 15. Average of 3.5.7 average of 1.2.3.4.5.6.7.8.9
- 16. 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______ ．
- 17. If the average of data x, 2x, 3x, 4x, 5x is 1, then x is (), what is the variance?
- 18. Given that the average of 3,2,7,2x and 8 is 6, what is the variance of this group of data
- 19. 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!
- 20. 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"