Probability that a person will develop i...

Probability that a person will develop immunity after vaccinations is 0.8. if 8 people are given the vaccine, then probability that all develop immunity is=

`(0.2)^(8)`

`(0.8)^(8)`

`.^(8)C_(6)(0.2)^(6)(0.8)^(2)`

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The correct Answer is:

Given probability that a person will develop immunity after vaccination=0.8
`therefore`Probability of 8 persons that all develop immunity `=(0.8)^(8)`

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