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

Transcript

Ex 5.3, 3 Find the (a) Probability of the pointer stopping on D in (Question 1-(a))? Total number of Sectors = 5 Number of Sectors with D = 1 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘†๐‘’๐‘๐‘ก๐‘œ๐‘Ÿ๐‘  ๐‘ค๐‘–๐‘กโ„Ž ๐ท)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘ ๐‘’๐‘๐‘ก๐‘œ๐‘Ÿ๐‘ ) = 1/5 Ex 5.3, 3 (b) Probability of getting an ace from a well shuffled deck of 52 playing cards? Total number of cards = 52 Total aces in 52 cards = 4 Probability = (๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘Ž๐‘๐‘’๐‘  ๐‘–๐‘› 52 ๐‘๐‘Ž๐‘Ÿ๐‘‘๐‘ )/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘๐‘Ž๐‘Ÿ๐‘‘๐‘ ) = 4/52 = 1/13 Ex 5.3, 3 (c) Probability of getting a red apple. Total apples = 7 Number of Red apples = 4 Probability of getting a red apple = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘…๐‘’๐‘‘ ๐‘Ž๐‘๐‘๐‘™๐‘’๐‘ )/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘Ž๐‘๐‘๐‘™๐‘’๐‘ ) = 4/7

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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.