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  1. Chapter 5 Class 8 Data Handling
  2. Serial order wise

Transcript

Ex 5.3, 6 Find the probabilities of the events given in Question 2. Question 2 is When a die is thrown, list the outcomes of an event of getting (i) (a) a prime number (b) not a prime number. Total number of outcomes = 6 (i) (a) Number of outcomes of getting a prime number = 3 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘  ๐‘œ๐‘“ ๐‘”๐‘’๐‘ก๐‘ก๐‘–๐‘›๐‘” ๐‘Ž ๐‘๐‘Ÿ๐‘–๐‘š๐‘’ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘ ) = 3/6=1/2 (b) Number of outcomes of getting not a prime number = 3 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘  ๐‘œ๐‘“ ๐‘›๐‘œ๐‘ก ๐‘”๐‘’๐‘ก๐‘ก๐‘–๐‘›๐‘” ๐‘Ž ๐‘๐‘Ÿ๐‘–๐‘š๐‘’ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘ ) = 3/6=1/2 Ex 5.3, 6 Find the probabilities of the events given in Question 2. Question 2 is When a die is thrown, list the outcomes of an event of getting (ii) (a) a number greater than 5 (b) a number not greater than 5. (ii) (a) Number of outcomes of getting a number greater than 5 = 1 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘  ๐‘œ๐‘“ ๐‘”๐‘’๐‘ก๐‘ก๐‘–๐‘›๐‘” ๐‘Ž ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘”๐‘Ÿ๐‘’๐‘Ž๐‘ก๐‘’๐‘Ÿ ๐‘กโ„Ž๐‘Ž๐‘› 5)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘ ) = 1/6 (b) Number of outcomes of getting not a greater than 5 = 5 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘  ๐‘œ๐‘“ ๐‘Ž ๐‘”๐‘’๐‘ก๐‘ก๐‘–๐‘›๐‘” ๐‘Ž ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘›๐‘œ๐‘ก ๐‘”๐‘Ÿ๐‘’๐‘Ž๐‘ก๐‘’๐‘Ÿ 5)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘ ) = 5/6

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.