Question
Find the number of triangles in the given figure:
Solution
Triangles in the figure: PEF, PEO, POF, FON, OAB, ONP, NPJ, JPG, JCK, GHC, MHL, MDC, NKM. So, there are 13 triangles in the given figure.
The Mean deviation about Median for the given data.
52, 56, 66, 70, 75, 80, 82 is:
By the method of moving averages, the seasonal index for four quarters equals to:
Which option is WRONG?
If the difference between the rank of the 4 observations are 2.5, 0.5, -1.5, -1.5, then Spearman's rank correlation coefficient equals to:
If each observation is halved then the coefficient of quartile deviation
60% of the employees of a company are college graduates. Of these, 10% are in sales. Of the employees who did not graduate from college, 80% are in sal...
 X and Y are independent normal variables with mean 50 and 80 respectively and standard deviation as 4 and 3 respectively. What is the distribution o...
For completely randomized design for k treatments and n observations, yif = response from the jth unit receiving ith treatment, �...
For the variables X, Y and Z, rXY = 0.80, rXZ = 0.64, rY Z = 0.79 , then square of multiple correlation coefficient R2 X.Y Z is:
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