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Example 9 - Harpreet tosses two different coins simultaneously - Examples

 

  1. Chapter 15 Class 10 Probability
  2. Serial order wise
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Example 9 Harpreet tosses two different coins simultaneously (say, one is of Re 1 and other of Rs 2). What is the probability that she gets at least one head? Total possible outcomes = (H, H) , (H, T), (T, H), (T, T) Number of possible outcomes = 4 Total outcomes where she get atleast one head = (H, H) , (H, T), (T, H) Number of outcomes where she get atleast one head = 3 P(she gets atleast one head) = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘  ๐‘คโ„Ž๐‘’๐‘Ÿ๐‘’ ๐‘ โ„Ž๐‘’ ๐‘”๐‘’๐‘ก๐‘  ๐‘Ž๐‘ก๐‘™๐‘’๐‘Ž๐‘ ๐‘ก ๐‘œ๐‘›๐‘’ โ„Ž๐‘’๐‘Ž๐‘‘)/(๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘๐‘œ๐‘ ๐‘ ๐‘–๐‘๐‘™๐‘’ ๐‘œ๐‘ข๐‘ก๐‘๐‘œ๐‘š๐‘’๐‘ ) = 3/4

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He provides courses for Mathematics from Class 9 to 12. You can ask questions here.
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