Question 11 - Chapter 15 Class 9 Probability (Important Question)

Last updated at April 16, 2024 by

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

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Question 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) = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘๐‘Ž๐‘”๐‘  ๐‘ค๐‘–๐‘กโ„Ž ๐‘š๐‘œ๐‘Ÿ๐‘’ ๐‘กโ„Ž๐‘Ž๐‘› 5๐‘˜๐‘” ๐‘œ๐‘“ ๐‘“๐‘™๐‘œ๐‘ข๐‘Ÿ)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘๐‘Ž๐‘”๐‘ ) = 7/11

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo