Probability of an Event

Q. A man A speaks truth in $80\%$ of the cases and another man B in $90\%$ of the cases. While stating the same fact, what is the probability that they contradict?

1. $\frac{37}{50}$
2. $\frac{13}{50}$
3. $\frac{16}{50}$
4. None of these

Q.

Which of the following cannot be the probability of an event?

(A) $\frac{1}{3}$ (B) $0.1$ (C) $3\%$ (D) $\frac{17}{16}$

1. $\frac{1}{3}$

2. $0.1$

3. $3\%$

4. $\frac{17}{16}$

Q.

(a) A box contains marbles which are marked with first ten natural numbers. Find the probability of getting a marble marked with a multiple of 2.

(b) A bag contains 3 red balls, 6 blue balls, 1 is black and 2 balls are green. If you want to pick out a red ball what is the probability that you will get a red ball? [3 MARKS]

Q. From the given data, the number of players getting the probability of 2/6 is

1. 2
2. 1
3. 4

Q. Ace, two, and three of clubs are removed from a deck of 52 playing cards, and the rest is shuffled. Find the probability of getting a red king if a card is drawn from the remaining cards.

1. $\frac{1}{26}$
2. $\frac{1}{49}$
3. $\frac{1}{13}$
4. $\frac{2}{49}$

Q. Burst out the values that could be the probability of an event.

1. 0.07
2. -0.7
3. 1.2
4. 0.7
5. 0.50
6. 0.90
7. 5.7
8. 0.2
9. 1