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.

Solution:

The probability of a certain event is given by the ratio of occurrence of a particular event by the total number of events.

Probability of an event, P(E) = Number of instances that event takes place/Total number of instances

Total number of bags = 11

Number of bags containing more than 5 kg of flour = 7

Probability of a bag containing more than 5 kg of flour = 7/11

☛ Check: NCERT Solutions Class 9 Maths Chapter 15

Video Solution:

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

NCERT Solutions for Class 9 Maths Chapter 15 Exercise 15.1 Question 11

Summary:

The data of eleven bags of wheat flour, each marked 5 kg containing the following weights of flour (in kg) is given as 4.97, 5.05, 5.08, 5.03, 5.00, 5.06, 5.08, 4.98, 5.04, 5.07, 5.00. We have found that the probability of a bag containing more than 5 kg of flour = 7/11.

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