Question

4 a bag contains 2 blue pen, 6 red pen and 8 black pen. If three pen are drawn one by one with replacement, what is probability that all are black pen?

Answer 1

hey mate here is your answer ✨

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$formula$
$probality \frac{number \: of \: favourable \: outcomes}{number \: of \: outcomes}$
so the probability is
$\frac{8}{2 + 6 + 8} \\ then \\ \\ \frac{8}{16}$
$\frac{8}{16} = \ \frac{1}{2}$
so answer is 8/16 or 1/2


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