The arithmetic mean of first n natural numbers is
n/2
n/2 + 1
The arithmetic mean of 67, 79, 15, 0, 93, 44, 17 is
45
50
67
80
The arithmetic mean of 30, 20, 32, 16, 27, is
20
25
28
30
The median of 10, 20, 15, 29, 35, 42 is
23
24.5
28.5
For a given data, mean is 39 and median is 38.Then the mode is,
40
39
37
36
The median of the observations -3, -5, -8, 0, 3, 2, -10, is
0
-3
-5
2
If the mean deviation of number 1, 1 + d, 1 + 2 d,.... 1 + 100 d from their mean is 255, then d is equal to.
10
10. 1
20. 2
The relationship between mean, median, and mode is
Median = 3 mean - 2 mode
Mode = 3 Median - 2 Mean
Median = 2 Mean - 3 Mode
Mode = 2 Median -3 Mean
The median of 13, 23, 12, 18, 26, 19, 14, is
18
26
27
The values of mean, median and mode coincide, then the distribution is.
Positive skewness
Symmetric distribution
Negative skewness
All of the above
