. For the sample 5,6,5,7,8,5,6,7,6,5 which of the following is (are) true?
1. The median is 6 2. the mean is 6 3. the mode is 5.
A. 1 only B.2 only C. 3 only D. 1 and 3 only E. 1 , 2 and 3
- For the sample 9,8,10,9,11,9,12,12 which of the following is (are) false?
1.the mean is 10 2. the median is 10 3. the mode is 9
A.1 only B. 2 only C. 3 only D. 1 and 3 only E. 2 and 3 only - During a season, the goals scored by a school , football team in 20 matches were as follow
The mean of the numbers log2,log〖3/2〗 ,log〖4/3〗 ,….,log〖100/99〗 is
A.log〖50/49〗 B.log〖51/50〗 C. 0.01 D.0.02 E.2/99 - The mean of 3,7,x,11-x, x-1 is 5, then the value of x is
A.3 B.4 C. 5 D. 5.5 E.7.5 - If the average of three numbers a,b,c is x , then the average of a+3, b-1, c-5 is
A. x B. x+1 C.x-1 D. 3x-1 E.x+2