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Probability of an Event

In a class, t...

Question

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 them into a basket and mixes thoroughly. A child is asked to pick one card from the basket. Then the probability that the name written on the card is that of a girl is $\frac{9}{17}$ .Is it true? If true enter 1 else 0.

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Solution

Total number of girls = 18
Total number of boys = 16
Total number of students = 18 + 16 = 34
Probability of getting a girls name, P(Girl) $= \frac{18}{34} = \frac{9}{17}$

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