Chapter 15 – Probability
One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will (i) be an ace. (ii) not be an ace.
06
Oct
One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will (i) be an ace. (ii) not be an ace. One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will (i) be an ace. (ii) not be an ace. October [...]
Suppose we throw a die once. (i) What is the probability of getting a number greater than 4? (ii) What is the probability of getting a number less than or equal to 4?
06
Oct
Suppose we throw a die once. (i) What is the probability of getting a number greater than 4? (ii) What is the probability of getting a number less than or equal to 4? Suppose we throw a die once. (i) What is the probability of getting a number greater than 4? (ii) What is the [...]
A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the (1) Yellow ball (2) Red ball (3) Blue ball?
06
Oct
A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the (1) Yellow ball (2) Red ball (3) Blue ball? A bag contains a [...]
Find the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail.
06
Oct
Find the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail. Find the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail. October 6, 2020 Category: Chapter 15 - Probability , Maths , NCERT Class [...]
A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.
06
Oct
A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it [...]
A die is numbered in such a way that its faces show the numbers 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?
06
Oct
A die is numbered in such a way that its faces show the numbers 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 [...]
Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (iii) different days?
06
Oct
Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (iii) different days? A die [...]
Which of the following arguments are correct and which are not correct? Give reasons for your answer. (i) If two coins are tossed simultaneously there are three possible outcomes-two heads, two tails or one of each. Therefore, for each of these outcomes, the probability is 3/1 (ii) If a die is thrown, there are two possible outcomes-an odd number or an even number. Therefore, the probability of getting an odd number is 2/1.
06
Oct
Which of the following arguments are correct and which are not correct? Give reasons for your answer. (i) If two coins are tossed simultaneously there are three possible outcomes-two heads, two tails or one of each. Therefore, for each of these outcomes, the probability is 3/1 (ii) If a die is thrown, there are two [...]
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for each of these outcomes ,
the probability is 3/1 (ii) If a die is thrown ,
the probability of getting an odd number is 2/1. ,
there are two possible outcomes-an odd number or an even number. Therefore ,
two tails or one of each. Therefore ,
Which of the following arguments are correct and which are not correct? Give reasons for your answer. (i) If two coins are tossed simultaneously there are three possible outcomes-two heads ,
A die is thrown twice. What is the probability that (i) 5 will not come up either time? (ii) 5 will come up at least once?
06
Oct
A die is thrown twice. What is the probability that (i) 5 will not come up either time? (ii) 5 will come up at least once? A die is thrown twice. What is the probability that (i) 5 will not come up either time? (ii) 5 will come up at least once? October 6, 2020 [...]
A game consists of tossing a one rupee coin 3 times and noting its outcome each time. Hanif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Hanif will lose the game.
06
Oct
A game consists of tossing a one rupee coin 3 times and noting its outcome each time. Hanif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Hanif will lose the game. A game consists of tossing a one rupee coin 3 [...]