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Ex 15.1, 11 - Chapter 15 Class 9 Probability (Important Question)

Last updated at May 29, 2018 by

Ex 15.1, 11 - Eleven bags of wheat flour, each marked 5 kg - Finding probability

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Ex 15.1, 11 Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg): 4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00 Find the probability that any of these bags chosen at random contains more than 5 kg of flour. Number of total bags = 11 Number of bags containing more than 5 kg of flour = 7 (5.05 , 5.08 , 5.03 , 5.06 , 5.08 , 5.04 , 5.07 ) P(Bag chosen contains more than 5 kg of flour) = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘”π‘  π‘€π‘–π‘‘β„Ž π‘šπ‘œπ‘Ÿπ‘’ π‘‘β„Žπ‘Žπ‘› 5π‘˜π‘” π‘œπ‘“ π‘“π‘™π‘œπ‘’π‘Ÿ)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘Žπ‘”π‘ ) = 7/11

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