In a class, there are 18 girls and 16 boys. The class teacher wants to choose one pupil for class monitor. What she does, she writes the name of each pupil on a card and puts then into a basket and mixes thoroughly. A child is asked to pick one card from the basket. What is the probability that the name written on the card is:
(i) the name of a girl
(ii) the name of a boy
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The probability that the name written on the card is:
(i) the name of a girl
= (total number of girls in class)/ total strength of class
= 18/34 = 9/17
(ii) the name of a boy
= (total number of boys in class)/ total strength of class
= 16/34 = 8/17
• Probability of an event to occur
= ( Total number of favourable events)/
( Total number of events)
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