Answer:
0.071%
Step-by-step explanation:
The probability of success is constant, and each dolphin is independent, so this is an example of a binomial distribution.
P = nCr p^r q^(n-r)
where P is the probability of r number of successes out of n number of trials, p is the probability of success, and q is probability of failure (1-p).
Given: n = 8, r = 4, p = 0.94, q = 0.06:
P = ₈C₄ (0.94)⁴ (0.06)⁸⁻⁴
P = 70 (0.94)⁴ (0.06)⁴
P ≈ 0.071%
