NCERT Solutions for Class 9 Maths Chapter 15
Important NCERT Questions
Probability
NCERT Books for Session 2022-2023
CBSE Board, UP Board and Other state Boards
EXERCISE 15.1
Page No:285
Questions No: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.
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Arranging the data in ascending order: 4.97, 4.98, 5.00. 5.03, 5.04, 5.05, 5.06, 5.07, 5.08,
Total number of flour bang = 11 and number of bags containing more than 5 kg of flour = 7
Therefore,
P(A bag contains more than 5 kg of flour) = 7/11
Hence, the probality that any of these bags chosen at random contains more than 5 kg of flour is 7/11.