Illustration 16.81. Two packs of cards are made up in such a way that the first pack consists of 39 red cards and 13 black cards, second pack consists of 39 black cards and 13 red cards. A sampling expe- riment is carried out in the following ways : A card is drawn from the first pack, if it is red, a second card is drawn from the same pack after replacing the first red card. The colour of the second card drawn from the first pack is noted. If the first card drawn from the first pack is black, then the second card is drawn from the second pack and the colour of the second card is noted. Both the cards are then replaced in their respective packs. What is the probability that the second card is red?

Illustration 16.81. Two packs of cards are made up in such a way that the first pack consists of 39 red cards and 13 black cards, second pack consists of 39 black cards and 13 red cards. A sampling expe- riment is carried out in the following ways : A card is drawn from the first pack, if it is red, a second card is drawn from the same pack after replacing the first red card. The colour of the second card drawn from the first pack is noted. If the first card drawn from the first pack is black, then the second card is drawn from the second pack and the colour of the second card is noted. Both the cards are then replaced in their respective packs. What is the probability that the second card is red?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 6E

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