The ages of 100 moviegoers are recorded as below-Age Frequency 0-10 10 10-20 20 20-30 50 30-40 15 40-50 5 Find the probability of the moviegoers between the age group of 40 to 50 -

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Theoretical Probability

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Question

The ages of 100 moviegoers are recorded as below:
Find the probability of the moviegoers between the age group of 40 to 50.

0.05

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0.1

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0.15

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0.2

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Solution

The correct option is A 0.05
If we add all the frequency we get 100. Here total number of outcomes is 100. For the age group '40 - 50' we find the frequency as 5. The number of favourable event is 5.

$P r o b a b i l i t y = \frac{N o . o f f a v o u r a b l e e v e n t s}{T o t a l n o . o f f a v o u r a b l e e v e n t s}$
= $\frac{5}{100}$
= $0.05$

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The ages of 100 moviegoers are recorded as below: Find the probability of the moviegoers between the age group of 40 to 50.

The correct option is A 0.05If we add all the frequency we get 100. Here total number of outcomes is 100. For the age group '40 - 50' we find the frequency as 5. The number of favourable event is 5. Probability=No. of favourable eventsTotal no. of favourable events = 5100 = 0.05

The ages of 100 moviegoers are recorded as below:
Find the probability of the moviegoers between the age group of 40 to 50.