The Kosi River is known as the 'Sorrow of Bihar' because of its frequent and devastating floods.
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:
If the sum of lower and upper qualities is 6 and quartile deviation is 1.5, then the value of coefficient of quartile deviation is
If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is
If first, second, and third moment about origin are 1, 6, and 15 respectively, then Karl Pearson beta coefficient of skewness β is
A man pedals cycle from his house to his office at a speed of 10 km/h and back from the office to his house at a speed of 15 km/h. His average speed (i...
If the odds in favour of any random event A are 5 : 6, then the odds against the event are:
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
The square of normal variate with mean 0 and variance 1 follows:
If P(A) = 0.4; P(B ∣ A) = 0.05; P(C ∣ A) = 0.04; P(B ∣ A ∩ C) = 0.09; P(C ∣ A ∩ B) = 0.0 7, then the probability of occurrence of all event...
