All papers are pencils (A) ⇒ I.I. ⇒Some papers are pencils (I). Hence, conclusion I will not follow. All paper are pencils. (A) + No pencil is an eraser (E) = No paper is an eraser (E). Hence, conclusion II will follow.
If random variable X follows binomial distribution with parameter n and p with mean 15 and variance 10, then the value of mode is
A random sample of 100 ball bearings selected from a shipment of 2000 ball bearing has an average diameter of 0.354 inches with standard deviation 0.04...
The mean deviation and coefficient of mean deviation of 5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is...
For two items, tea (1 kg) and sugar (1 kg), the prices in the year 2019 were ₹100 and ₹50, respectively, whereas the prices in the year 2020 were â...
Which of the following is the most relevant for deriving a point estimate?
If moment generating function of discrete random variable X is (q + pet )n , then E(X2) equals to
 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...
If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:
The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is: