If two marbles are picked at random, what is the probability that either both are green or both are yellow ?
A). 5/91
B). 1/35
C). 1/3
D). 4/105
4/105
NA
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1. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If four marbles are picked at random, what is the probability that none is blue?
2. If three marbles are picked at random, what is the probability that two are blue and one is yellow ?
3. An unbiased die is thrown twice. Let the event A be ‘odd number on the first throw’ and B the event‘odd number on the second throw’. Check the independence of the events A and B.
4. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity A: In a box containing 10 red balls, 12 blue
5. Given below are two quantities named A & B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity A: A committee of 5 members is to be formed from a team of 4 Maths teachers and 3 English teachers. What is the probability that the committee has at least two English teachers? Quantity B: 0.5
6. Two cards are drawn at random from a pack of 52 cards.what is the probability that either both are black or both are queen?
7. If a box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains no defective bulbs.
8. A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour.
9. The probability that a number selected at random from the first 50 natural numbers is a composite number is -.
10. What is the probability of choosing a vowel from the word Mississippi?
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