A’s age is the sixth part of his father’s age. After 8 years, the age of A’s father will be twice the age of B. If B’s 6th birthday is celebrated 2 years ago, then what is the current age of A?
Let A’s age be x years and father’s age be 6x years. Present age of B = 6 + 2 = 8 years After 8 years, => 6x + 8 = 2(8 + 8) => 6x = 32 – 8 => x = 24/6 = 4 years
The purchasing power of money is equal to:
The median of following observations 8, 9, 10, 8, 8, 10, 8, 9 is
If ten coins are tossed simultaneously, then the probability of getting at most I head is:
A random sample of size 225 is drawn from the population of mean μ and standard deviation σ. The sample mean follows the distribution with mean 100 a...
For completely randomized design for k treatments and n observations, yif = response from the jth unit receiving ith treatment, â...
If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean...
The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative...
Identify, from the following, the moment used as a measure of skewness?
For the random variable X with probability density function f(x) = (x−3)2 /5; x = 3, 4, 5, the variance of X is: