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Recent questions tagged class11

Three coins are tossed once.Find the probability of getting no head

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting atmost 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting atleast 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting 3 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

A fair coin is tossed four times and a person win Rs.1 for each head and lose Rs.1.50 for each tail that turns up.From the sample space,calculate how many different amounts of money you can have after four tosses and the probability of having each of these amounts.

asked Jul 1, 2014 by sreemathi.v

1 answer

Show that the tangent of an angle between the lines $ \large\frac{x}{a}$$+\large\frac{y}{b}$$=1$ and $ \large\frac{x}{a}$$-\large\frac{y}{b}$$=1$ is $ \large\frac{2ab}{a^2-b^2}$

asked Jun 30, 2014 by thanvigandhi_1

1 answer

Find the points on the line x + y = 4 which lie at a unit distance from the line 4x + 3y = 10

asked Jun 30, 2014 by thanvigandhi_1

1 answer

Find the equation of the lines which passes through the point (3, 4) and cuts off intercepts from the coordinate axes such that their sum is 14.

asked Jun 30, 2014 by thanvigandhi_1

1 answer

From the prices of shares A and Y below. Find out which is more stable in value.

asked Jun 30, 2014 by meena.p

1 answer

Find the angle between the lines $y = (2 – \sqrt3 ) (x + 5)$ and $y = (2 + \sqrt3 ) (x – 7).$

asked Jun 30, 2014 by thanvigandhi_1

1 answer

Find the equation of the line passing through the point (5, 2) and perpendicular to the line joining the points (2, 3) and (3, – 1)

asked Jun 30, 2014 by thanvigandhi_1

1 answer

Find the equation of the straight line which passes through the point (1, – 2) and cuts off equal intercepts from axes

asked Jun 30, 2014 by thanvigandhi_1

1 answer

There are four men and six women on the city council.If one council member is selected for a committee at random,how likely is it that it is a woman ?

asked Jun 30, 2014 by sreemathi.v

1 answer

A fair coin with 1 marked on one face and 6 on the other and a fair dice are both tossed.Find the probability that the sum of the numbers that turn up is 12

asked Jun 30, 2014 by sreemathi.v

1 answer

From the data given below state which group is more variable A or B?

asked Jun 30, 2014 by meena.p

1 answer

A fair coin with 1 marked on one face and 6 on the other and a fair dice are both tossed.Find the probability that the sum of the numbers that turn up is 3

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is black card

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is an ace

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is an ace of spades.

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.How many points are there in the sample space ?

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number less than 6 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number more than 6 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

The diameters of circles(in mm) drawn in a design are given below . Calculate the std. deviation and mean diameter of the circles.

asked Jun 30, 2014 by meena.p

1 answer

A die is thrown,find the probability of following event : A number less than or equal to 1 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number greater than or equal to 3 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A prime number will appear.

asked Jun 30, 2014 by sreemathi.v

1 answer

A coin is tossed twice,what is the probability that atleast one tail occurs

asked Jun 30, 2014 by sreemathi.v

1 answer

Find mean and variance and standard deviation using short cut method.

asked Jun 30, 2014 by meena.p

1 answer

Which of the following can not be valid assignment of probabilities for outcomes of sample space $S=\{\omega 1,\omega 2,\omega 3,\omega 4,\omega 5,\omega 6,\omega 7\}$

asked Jun 30, 2014 by sreemathi.v

1 answer

Two dice are thrown.The events A,B and C are as follows :A : getting an even number in first die,B : getting an odd number on the first die,C : getting the sum of the numbers on the dice $\leq$ 5.State true or false : A',B' and C are mutually exclusive & exhaustive

asked Jun 30, 2014 by sreemathi.v

1 answer

Two dice are thrown.The events A,B and C are as follows :A : getting an even number in first die,B : getting an odd number on the first die,C : getting the sum of the numbers on the dice $\leq$ 5.State true or false : A and B' are mutually exclusive.

asked Jun 30, 2014 by sreemathi.v

1 answer

Two dice are thrown.The events A,B and C are as follows :A : getting an even number in first die,B : getting an odd number on the first die,C : getting the sum of the numbers on the dice $\leq$ 5.State true or false : A and C are mutually exclusive

asked Jun 30, 2014 by sreemathi.v

1 answer

Two dice are thrown.The events A,B and C are as follows :A : getting an even number in first die,B : getting an odd number on the first die,C : getting the sum of the numbers on the dice $\leq$ 5.State true or false : A=B'

asked Jun 30, 2014 by sreemathi.v

1 answer

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