Answer:
E(x) = 20.46
Explanation:
To find the mean value, use the formula E(x) = np
Where E(x) is the mean, or expected value, n is the number of trials and p is the probability of the event occurring.
In this case, our n is 93 and our p is 0.22. Hence:
E(x) = 93 × 0.22
E(x) = 20.46
Hope that helps!