Answer:
[tex]undefined[/tex]Explanations:
Probability is the likelihood or chance that an event will occur.
Probability = Expected outcome/Total outcome
If there are 4 sets of balls numbered 1 through 9 placed in a bowl, the total outcome will be (4*9) = 36 balls (36 balls in total with each number appearing four times.)
If we pick the first ball without replacing it, there will be 35 balls left with 3 of the remaining balls having the same number as the selected ball.
Pr(remaining 3 equal balls) = 3/35
Similarly, if we pick 3 equal balls, there is now a single equal ball left out of 33 balls in the bowl. The probability of picking 4 equal balls is:
[tex]\begin{gathered} \text{ Pr(4 equal balls) = }\frac{3}{35}\times\frac{1}{33} \\ \text{ Pr(4 equal balls) = }\frac{1}{35\times11} \\ \text{ Pr(4 equal balls) = }\frac{1}{385} \end{gathered}[/tex]
