groups of 4 persons are formed out of 12 persons. find the probability that 1 particular person is never included or always included
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Answer: The probability of 1 particular person always being included is 1. (i.e., he is always included and never excluded)
Step-by-step explanation:
Out of 12 persons, groups of 4 persons are formed.
Which implies there are 3 groups where all the 12 persons are equally divided into[as 12 is perfectly divisible by 4, 12/4=3 ]
hope it helps! :)
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