Chapter 14 Class 10 Probability
Concept wise

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Transcript

Example 2 A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the yellow ball? Total number of balls = 3 Number of balls which are yellow = 1 P(ball taken out yellow) = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘  π‘€β„Žπ‘–π‘β„Ž π‘Žπ‘Ÿπ‘’ π‘¦π‘’π‘™π‘™π‘œπ‘€)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘ ) = 𝟏/πŸ‘ Example 2 A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the (ii) red ball? Total number of balls = 3 Number of balls which are red = 1 P(ball taken out red) = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘  π‘€β„Žπ‘–π‘β„Ž π‘Žπ‘Ÿπ‘’ π‘Ÿπ‘’π‘‘)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘ ) = 𝟏/πŸ‘ Example 2 A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the (iii) blue ball? Total number of balls = 3 Number of balls which are blue = 1 P(ball taken out blue) = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘  π‘€β„Žπ‘–π‘β„Ž π‘Žπ‘Ÿπ‘’ 𝑏𝑙𝑒𝑒)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘™π‘™π‘ ) = 𝟏/πŸ‘

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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.