Source: the probability class April 14,2021
Is the answer 945/16,387
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R = red shirt
O = any other shirt
Now U can have RRRROOO, OOORRRR and so on… SO 7C4 combinations
Now probability of wearing red is 1/4 ,So not red = 1-1/4 = 3/4
So —> 35 x (1/4)^4 x (3/4)^3 = ANS
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yeah, the same. Just wanted to make sure I got it right.