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Recent questions tagged p546

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that (i) both balls are red. (ii) first ball is black and second is red. (iii) one of them is black and other is red.

asked Nov 27, 2012 by balaji.thirumalai

1 answer

A die is tossed thrice. Find the probability of getting an odd number at least once.

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Given two independent events A and B such that P(A) = 0.3, P(B) = 0.6. Find (i) P(A and B) (ii) P(A and not B) (iii) P(A or B) (iv) P(neither A nor B)

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Events A and B are such that $P (A) = \frac{1}{2} , P(B) = \frac{7}{12}$ and P(not A or not B) = $ \frac{1}{4} $ . State whether A and B are independent?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

If A and B are two events such that $P (A) = \large \frac{1}{4} , P (B) = \large\frac{1}{2} $ and $P(A \cap B) = \large \frac{1}{8} $ , find $P$ (not A and not B).

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Let A and B be independent events with P (A) = 0.3 and P(B) = 0.4. Find (i) P(A $\cap$ B) (ii) P(A $\cup$ B) (iii) P ($\large\frac{A}{B}$) (iv) P ($\large\frac{B}{A}$)

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Given that the events A and B are such that $P(A) = \large \frac{1}{2} , P (A \cap B) = \large \frac{3}{5} $ and $P(B) = p$. Find p if they are (i) mutually exclusive (ii) independent.

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Let E and F be events with $P (E) = \frac{3}{5} , P (F)= \frac{3}{10} $ and $P (E \cap F) = \frac{1}{5} $ . Are E and F independent?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

A die marked 1, 2, 3 in red and 4, 5, 6 in green is tossed. Let A be the event of the number being even, and B be the event of the number being red. Are A and B independent?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

A fair coin and an unbiased die are tossed. Let A be the event - head appears on the coin and B be the event 3 on the die. Check whether A and B are independent events or not.

asked Nov 27, 2012 by balaji.thirumalai

1 answer

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