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In each of the following experiments spe...

In each of the following experiments specify appropriate sample space
(i) A boy has a 1 rupee coin, a 2 rupee coin and a 5 rupee coin in his pocket. He takes out two coins out of his pocket, one after the other.

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The correct Answer is:
`S = {QH, QR, HQ, HR, RH, RQ}`
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In each of the following experiments specify appropriate sample space (i) A boy has 1 rupee coin, a 2 rupee coin and a 5 rupee coin in his pocket. He takes out two coins out of his pocket, one after the other. (ii) A person is noting down the number of accidents along a busy highway during a year.

Two coins (a one rupee coin and a two rupee coin) are tossed once. Find a sample space.

Which of the following arguments are correct and which are not correct? Give reasons. 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 1/3 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 1/2

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Give the magnitude and direction of (a) the force on the 7th coin (counted from the bottom) due to all the coins on its top, (b) the force on the 7th coin by the eighth coin, (c) the reaction of the 6th coin on the 7th coin

One urn contains two black balls (labelled B_(1) and B_(2) ) and one white ball. A second urn contains one black ball and two white balls (labelled W_(1) , and W_(2) ). Suppose the following experiment is performed. One of the two urns is chosen at random. Next a ball is randomly chosen from the urn. Then a second ball is chosen at random from the same urn without replacing the first ball. (i) Write the sample space showing all possible outcomes (ii) What is the probability that two black balls are chosen ? (iii) What is the probability that two balls of opposite colour are chosen ?

Ten one-rupee coins are put on top each other on a table. Each coin has a mass m. The rection of the 6^(th) coin (counted from the bottom) on the 7^(th) coin is

Given three identical boxes I, II and III, each containing two coins. In box I, both coins are gold coins, in box II, both are silver coins and in the box III, there is one gold and one silver coin. A person chooses a box at random and takes out a coin. If the coin is of gold, what is the probability that the other coin in the box is also of gold?

A car is moving with at a constant speed of 60 km h^(-1) on a straight road. Looking at the rear view mirror, the driver finds that the car following him is at a distance of 100 m and is approaching with a speed of 5 km h^(-1) . In order to keep track of the car in the rear, the driver begins to glance alternatively at the rear and side mirror of his car after every 2 s till the other car overtakes. If the two cars were maintaining their speeds, which of the following statement (s) is // are correct?

A Kiddy bank contains hundred 50p coins, fifty ₹1 coins, twenty ₹2 coins and ten ₹5 coins. Ifit is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a 50 p coin? (ii) will not be a ₹5 coin?

KUMAR PRAKASHAN-PROBABILITY-Textbook Illustrations for Practice Work
  1. Two coins (a one rupee coin and a two rupee coin) are tossed once. Fin...

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  2. Find the sample space associated with the experiment of rolling a pair...

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  3. In each of the following experiments specify appropriate sample space ...

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  4. In each of the following experiments specify appropriate sample space ...

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  5. A coin is tossed. If it shows head, we draw a ball from a bag consist...

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  6. Consider the experiment in which a coin is tossed repeatedly until a h...

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  7. Consider the experiment of rolling a die. Let A be the event 'getting ...

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  8. Two dice are thrown and the sum of the numbers which come up on the di...

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  9. A coin is tossed three times, consider the following events. A : 'No...

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  10. Let a sample space be S={omega(1),omega(2),.........,omega(6)}. Which ...

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  11. One card is drawn from a well shuffled deck of 52 cards. If each outco...

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  12. A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow...

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  13. Two students Anil and Ashima appeared in an examination. The probabili...

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  14. A committee of two persons is selected from two men and two women. Wha...

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  15. On her vacations Veena visits four cities(A, B, C and D) in random or...

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  16. Find the probability that when a hand of 7 cards is drawn from well sh...

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  17. If A, B C are three events associated with a random experiment, prove ...

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  18. In a relay race there are five teams A, B, C, D and E. (a) What is t...

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  19. In a relay race there are five teams A, B, C, D and E. (b) What is t...

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