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Standard XII

Mathematics

Complement of an Event

A survey was ...

Question

A survey was conducted in our locality regarding the eating habits of person. Out of $450$ people $175$ persons are found to be pure vegetarian, what is the probability of persons selected at random of being non vegetarian?

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Solution

No of non veg persons is $450 - 175 = 275$

Probability is $\frac{275}{450} = \frac{11}{18}$

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A survey was conducted in our locality regarding the eating habits of person. Out of 450 people 175 persons are found to be pure vegetarian, what is the probability of persons selected at random of being non vegetarian?

No of non veg persons is 450−175=275Probability is 275450=1118

A survey was conducted in our locality regarding the eating habits of person. Out of $450$ people $175$ persons are found to be pure vegetarian, what is the probability of persons selected at random of being non vegetarian?

No of non veg persons is $450 - 175 = 275$

Probability is $\frac{275}{450} = \frac{11}{18}$