Advertisements
Advertisements
Question
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is jack
Solution
E⟶ event of getting a jack.
No. of favourable outcomes = 4 {4 jack cards}
We know that, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
P(E) =4/52 =1/13
APPEARS IN
RELATED QUESTIONS
- A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is defective?
- Suppose the bulb drawn in (1) is not defective and is not replaced. Now one bulb is drawn at random from the rest. What is the probability that this bulb is not defective?
A die is numbered in such a way that its faces show the number 1, 2, 2, 3, 3, 6. It is thrown two times and the total score in two throws is noted. Complete the following table which gives a few values of the total score on the two throws:
What is the probability that the total score is
(i) even? (ii) 6? (iii) at least 6?
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is neither a heart nor a king
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability? of obtaining the same number on both dice?
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a queen of black suit
12 defective pens are accidently mixed with 132 good ones. It is not possible to just look at pen and tell whether or not it is defective. one pen is taken out at random from this lot. Determine the probability that the pen taken out is good one.
Fill in blank:
Probability of a sure event is...........
Cards marked with numbers 1, 2, 3 ......... 20 are well shuffled and a card is drawn at random. What is the probability that the number on the card is a prime number?
In a cricket match a batsman hits a boundary 6 times out of 30 balls he plays. Find the probability that he did not hit the boundary?
Two dice are thrown simultaneously. What is the probability that the sum of the numbers appearing on the dice is 7?