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Introduction To Mathematical Modelling

Question

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11 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, 4.98, 5.04, 5.08, 5.07, 5.00. The probability that a bag chosen at random, contains more than 5 kg of flour is:
$space space 2 over 11$
$4 over 11$
$9 over 11$
$7 over 11$

Solution

D.

7 over 11

Some More Questions From Introduction to Mathematical Modelling Chapter

Activity: Note the frequency of two wheelers, three wheelers and four wheelers going past during a time interval, in front of your school gate. Find the probability that any one vehicle out of the total vehicles you have observed is a two-wheeler.

Activity: Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3 ? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3.

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