Answer:

Explanation:
Given

Represent fraudulent with p


Required
Determine the probability that none are fraudulent
First, we need to determine the proportion of those that are not fraudulent.
Represent this with q





The required probability is binomial and can be determine using the following:

In this case x = 0 (none);
So, the required probability is:

Substitute values for n, p and q







Approximated