Answer:
Given:
Probability of success $(p) = \frac{1}{4} = 0.25 $
Sample size $(n) = 9 $
Solution:
The probability that x is equal to 4:
$P(x = 4) = \binom{9}{4} \cdot 0.25^4 \cdot (1 – 0.25)^{9-4} = 0.1168$
Final Answer:
The probability that x is equal to 4 = 0.1168