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Ex 15.1, 13 - Chapter 15 Class 9 Probability (Term 2)

Last updated at Jan. 31, 2022 by

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Ex 15.1, 13 In Q.1, Exercise 14.2, you were asked to prepare a frequency distribution table regarding the blood groups of 30 students of a class. Use this table to determine the probability that a student of this class, selected at random, has blood group AB. Total number of students = 30 Number of students with Blood group AB = 3 Probability = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ 𝑠𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€π‘–π‘‘β„Ž π‘π‘™π‘œπ‘œπ‘‘ π‘”π‘Ÿπ‘œπ‘’π‘ 𝐴𝐡)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ 𝑠𝑑𝑒𝑑𝑒𝑛𝑑𝑠) = 3/30 = 𝟏/𝟏𝟎

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