Example 3 - A bag has 4 red balls and 2 yellow balls. (The balls are

Example 3 - Chapter 5 Class 8 Data Handling - Part 2

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Example 3 A bag has 4 red balls and 2 yellow balls. (The balls are identical in all respects other than colour). A ball is drawn from the bag without looking into the bag. What is probability of getting a red ball? Is it more or less than getting a yellow ball? Total Balls = 6 Number of Red Balls = 4 Number of Yellow Balls = 2 Probability of getting a red ball = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑅𝑒𝑑 𝐵𝑎𝑙𝑙𝑠)/(𝑇𝑜𝑡𝑎𝑙 𝐵𝑎𝑙𝑙𝑠) = 4/6 = 2/3 Probability of getting a yellow ball = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑌𝑒𝑙𝑙𝑜𝑤 𝐵𝑎𝑙𝑙𝑠)/(𝑇𝑜𝑡𝑎𝑙 𝐵𝑎𝑙𝑙𝑠) = 2/6 = 1/3 Since 2/3>1/3 ∴ Probability of getting a red balls is more than getting a yellow ball.

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.