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Nine Cards (Identical in All Respects) Are Numbered 2 to 10. a Card is Selected from Them at Random. Find the Probability that the Card Selected Will Be: an Even Number - ICSE Class 10 - Mathematics

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Question

Nine cards (identical in all respects) are numbered 2 to 10. A card is selected from them at random. Find the probability that the card selected will be: 

an even number 

Solution

There are 9 cards from which one card is drawn. 

Total number of elementary events =n(s)=9 

From numbers 2 to 10, there are 5 even numbers i.e 2,4,6,8,10 

Favorable number of event =n(E)=5 

Probability of selecting card with an even number = `(n(E))/(n(S))=5/9`

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Solution Nine Cards (Identical in All Respects) Are Numbered 2 to 10. a Card is Selected from Them at Random. Find the Probability that the Card Selected Will Be: an Even Number Concept: Type of Event - Complementry.
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