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Probability that a person will devlop immunity after vaccination is 0.8 If 8 8 people are given the vaccine then probability that all develop immunity is

A

`(0.2)^8`

B

`(0.8)^8`

C

1

D

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

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The correct Answer is:
B
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