Recent questions in Mathematics

If a, b and c are in H.P, then a/(b+c), b/(c+a), c/(a+b) are in

asked Jan 17, 2014 by yamini.v

1 answer

If arithmetic, geometric and harmonic means between two positive real numbers is A, G and H respectively, then, which of the following is true?

asked Jan 17, 2014 by yamini.v

1 answer

If Shelly does not like John, what is the truth value of the statement "Shelly likes Mike and she likes John."?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

Which of the following is the converse of the statement: $"If x>4$ , then $x+2>5"$ ?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

Which of the following statements is true?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

In which of the following statements is the $"\text{or}"$ inclusive?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

What is the negation of the statement - All triangles are not Equilateral triangles.

asked Jan 17, 2014 by thanvigandhi_1

1 answer

What is the negation of the statement- “Chennai is the capital of Tamil Nadu”.

asked Jan 17, 2014 by thanvigandhi_1

1 answer

The sum of n terms of the infinite series $1.3^2$ + $2.5^2$ + $3.7^2$ +------- $\infty$ is given by

asked Jan 17, 2014 by yamini.v

1 answer

Which of the following sentences is a statement?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

Which of the following sentences is a statement ?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

In a binomial distribution the mean is 15 and variance is 10, then parameter $n$ is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

Probability of getting positive integral roots of the equation $x^2-n=0$ for the integer $n \: \: \: 1 \leq n \leq 40$ is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

Twelve tickets are numbered from 1 to 12. One tickets is drawn at random, then the probability of the number to be divisible by 2 or 3 is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

If X is a Poisson variate such that $P(X=1)=P(x=2)$ the $P(x=4)$ is equal to

asked Jan 16, 2014 by thanvigandhi_1

1 answer

A fair die is tossed eight times. The probability that a third six is observed on the eight throw is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

The mean and standard deviation of a binomial variate X are 4 and $\sqrt 3$ respectively. The $P( X \geq 1 )$ is equal to

asked Jan 16, 2014 by thanvigandhi_1

1 answer

If X is a binomial variate with the range { 0,1,2,3,4,5,6 } and P(X = 2)=4P (x=4) then the parameter P of X is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

If $P(A)=P(B)=x\: and \: P(A \cap B ) = P(A' \cap B')=\large\frac{1}{3}$ then x is equal to

asked Jan 16, 2014 by thanvigandhi_1

1 answer

If $P(A)=\large\frac{1}{12}\: P(B)=\large\frac{5}{12}\: and \: P(B/A) = \large\frac{1}{15}$ then $P(A \cup B )$ is equal to

asked Jan 16, 2014 by thanvigandhi_1

1 answer

A random variable X follows binomial distribution with mean $\alpha$ and variance $\beta$ Then

asked Jan 16, 2014 by thanvigandhi_1

1 answer

The chances to fail in Physics are 20% and the chances to fail in Mathematics are 10%. What are the chances to fail in at least one subject ?

asked Jan 16, 2014 by thanvigandhi_1

1 answer

A bag contains 3 black, 3 white and 2 red balls. One by one three balls are drawn without replacement. The probability that the third ball is red is equal to

asked Jan 16, 2014 by thanvigandhi_1

1 answer