Answer:
The probability is 0.0036
Explanation:
Let the probability of tagged order form be p = 0.1
probability of untagged = q = 1 -0.1 = 0.9
To find the probability in the question, we apply the Bernoulli approximation of the binomial distribution
That will be;
P( X = 3) = 4 C 3 •p^3 • q
P(X = 3) = 4 * (0.1)^3 * 0.9
P(X = 3) = 0.0036