\textbf{Question 3:} In an urn there are 6 black balls and 4 red balls. We perform 10 successive random draws with replacement. What is the probability (to $10^{-4}$ near) of obtaining 4 black balls and 6 red balls?

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\begin{tabular}{ | l | l | l | l | }
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a. 0.1662 & b. 0.4 & c. 0.1115 & d. 0.8886 \\
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