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.
Class 9 - Math - Probability Page 285
Answers
Total number of wheat bags==11
So,that the number bags having more than 5 kilograms =7
Probability of a bag contain more than 5 kilograms ==7/11
P is 7/11
Hope it is helpful...
Probability is the study of the chances of events happening.
Event:
A Possible outcome or combination of outcomes is called event.
The probability of happening our event always lies from 0 to 1.
The sum of all the probabilities of all possible outcomes of an experiment is 1.
Required probability=number of trials in which the event E has happened/Total number of trials
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Solution:
Total numbers of wheat flour bags = 11
The weight of flour more than 5 kg are 5.05, 5.08, 5.03, 5.06, 5.08, 5.04, 5.07
Numbers of bags containing more than 5 kg of
flour = 7
Required probability,P(more than 5 kg of flour) = 7/11
P(more than 5 kg of flour) = 7/11
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Hope this will help you...