Answer:
Given:
Probability of success $(p) = \frac{1}{5} = 0.20 $
Sample size $(n) = 8 $
Solution:
The probability that x is equal to 5:
$P(x = 5) = \binom{8}{5} \cdot 0.2^5 \cdot (1 – 0.2)^{8-5} = 0.0092$
Final Answer:
The probability that x is equal to 5 = 0.0092