Recent questions tagged ch13

$\lim\limits_{x\to 1}(1-x)\tan\large\frac{\pi x}{2}$=__________

asked Dec 20, 2013 by sreemathi.v

1 answer

If $\overrightarrow {AB}=3\hat i+\hat j-2\hat k,\:and \:\overrightarrow {AC}=-\hat i+3\hat j+4\hat k$ are two sides af the $\Delta ABC$, then the length of the median through $A$ is ?

asked Dec 1, 2013 by rvidyagovindarajan_1

1 answer

If $\overrightarrow u,\overrightarrow v,\overrightarrow w$ are non coplanar vectors and $p,q$ are real numbers so that $[3\overrightarrow u\:p\overrightarrow v\:p\overrightarrow w]-[p\overrightarrow v\:p\overrightarrow w\:q\overrightarrow u]-[2\overrightarrow w\:q\overrightarrow v\:q\overrightarrow u]=0$ then number of values of $p,q$ is

asked Nov 22, 2013 by rvidyagovindarajan_1

1 answer

Suppose X has a binomial distribution $ B\; \large($$6, \large\frac{1}{2})$. What is the most likely outcome and for what value of X, where x = 0, 1, 2, 3, 4, 5, 6?

asked Jun 21, 2013 by balaji.thirumalai

1 answer

Find the probability distribution of the number of successes in two tosses of a die, where a success is defined as six appears on at least one die

asked Jun 20, 2013 by balaji.thirumalai

1 answer

Find the probability distribution of the number of successes in two tosses of a die, where a success is defined as number greater than 4.

asked Jun 20, 2013 by balaji.thirumalai

1 answer

Find the probability distribution of number of heads in four tosses of a coin.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

Find the probability distribution of number of tails in the simultaneous tosses of three coins.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

Find the probability distribution of number of heads in two tosses of a coin.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. If she reads English news paper, find the probability that she reads Hindi news paper.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. If she reads Hindi news paper, find the probability that she reads English news paper.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. Find the probability that she reads neither Hindi nor English news papers.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

One card is drawn at random from a well shuffled deck of 52 cards. In which of the following cases are the events E and F independent? (i) E : the card drawn is a spade F : the card drawn is an ace (ii) E : the card drawn is black F : the card drawn is a king (iii) E : the card drawn is a king or queen F : the card drawn is a queen or jack.

asked Jun 19, 2013 by balaji.thirumalai

1 answer

One card is drawn at random from a well shuffled deck of 52 cards. Are E and F independent if E : the card drawn is a king or queen F : the card drawn is a queen or jack?

asked Jun 19, 2013 by balaji.thirumalai

1 answer

One card is drawn at random from a well shuffled deck of 52 cards. Are E and F independent if E : the card drawn is black F : the card drawn is a king?

asked Jun 19, 2013 by balaji.thirumalai

1 answer

If P(A) = $\large \frac{1}{2}$ and P(B) = 0, then P$\large(\frac{A}{B})$ is?

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Calculate $ P \large ( \large \frac{ E \cup F}{G})$ and $ P \large ( \large \frac{ E \cap F}{G})$

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Calculate P(E/G) and P(G/E).

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Find P(E|F) and P (F|E),

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A black and a red dice are rolled. Find the conditional probability of obtaining a sum greater than 9, given that the black die resulted in a 5.

asked Jun 18, 2013 by balaji.thirumalai

1 answer

Determine P(E|F) when Two coins are tossed once, where E : no tail appears, F : no head appears

asked Jun 18, 2013 by balaji.thirumalai

1 answer

Determine P(E|F) when a coin is tossed three times, where E : at most two tails , F : at least one tail

asked Jun 18, 2013 by balaji.thirumalai

1 answer

Determine P(E|F) when a coin is tossed three times, where E : at least two heads , F : at most two heads

asked Jun 18, 2013 by balaji.thirumalai

1 answer