Probability 4 Question 11

11. The probability that $X=3$ equals

(a) $\frac{25}{216}$

(b) $\frac{25}{36}$

(c) $\frac{5}{36}$

(d) $\frac{125}{216}$

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Answer:

Correct Answer: 11. (a)

Solution:

  1. $P(X=3)=\frac{5}{6} \cdot \frac{5}{6} \cdot \frac{1}{6}=\frac{25}{216}$


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