Using the binomial distribution, it is found that the expected frequency would be of:
d. 160
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability, and has expected value given by:
[tex]E(X) = np[/tex]
In this problem:
Then, the expected frequency is:
[tex]E(X) = np = 800(0.2) = 160[/tex]
And the correct option is d.
A similar problem is given at https://brainly.com/question/24261244