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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

What is the probability that the spinner will not land on a multiple of 3? - Mathematics

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Question

What is the probability that the spinner will not land on a multiple of 3?

Sum

Solution

Sample space (S) = {1, 2, 3, 4, 5, 6, 7, 8}

n(S) = 8

Land in a multiple of 3 = {3, 6}

Land not a multiple of 3 = 8 – 2

= 6

Let E be the event of getting not a multiple of 6

n(E) = 6

P(E) = `("n"("E"))/("n"("S"))`

= `6/8`

= `3/4`

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Chapter 9: Probability - Exercise 9.1 [Page 299]

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Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 9 Probability
Exercise 9.1 | Q 9 | Page 299

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