An urn contains 25 balls of which 10 balls bear a mark "X" and the remaining 15 bear a mark T. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that (i) all

An urn contains 25 balls of which 10 balls bear a mark 'X' and the remaining 15 bear a mark 'Y'. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that all will bear 'X' mark.

An urn contains 25 balls of which 10 balls bear a mark "X" and the remaining 15 bear a mark Y. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that (i)    all will bear "X" mark. (ii)   not more than 2 will bear "Y" mark, (iii) at least one ball will bear "Y" mark. (iv) the number of balls with "X" mark and Y mark will be equal.

An urn contains 25 balls of which 10 balls bear a mark 'X' and the remaining 15 bear a mark 'Y'. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that at least one ball will bear 'Y' mark.

An urn contains 25 balls of which 10 balls bear a mark 'X' and the remaining 15 bear a mark 'Y'. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that the number of balls with 'X' mark and 'Y' mark will be equal.

An urn contains 25 balls of which 10 balls bear a mark 'X' and the remaining 15 bear a mark 'Y'. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that not more than 2 will bear 'Y' mark.

An urn contains 25 balls of which I0 balls bear a mark 'X' and remaining 15 bear a mark 'Y'. A ball is drawn at random from the urn, its mark is noted down and it is replaced. If 6 balls are drawn in this way, find the probability that i. all will bear 'X' mark ii. not more than 2 will bear 'Y' mark iii. atlest one ball will bear 'Y' mark iv. the number of balls with 'X' marks and 'Y' mark will be equal

An urn contains 25 balls of which 10 bear a mark 'x' and the remaining 15 bear a mark Y'. A ball is drawn at random from the urn, its mark noted down and it is replaced. If 6 balls are drawn in this way, find the probability that (i) all will bear mark 'X', (ii) not more than two will bear 'Y" mark, (iii) at least one ball will bear 'X' k and 'Y" mark will be equal

An urn contains 25 balls of which 10 balls are red and the remaining green. A ball is drawn at random from the urn the colour is noted and the ball is replaced. If 6 balls are drawn in this way, find the probability that : (i) All the balls are red. (ii) Number of red balls and green balls are equal.

An urn contains 6 balls of which two are red and four are black. Two balls are drawn at random. Probability that they are of the different colours is :