Answer: The probability of 2 successes where the single success has a probability of 0.712 and the number of trials 5 will be B 0.121
Explanation:
n = number of trials
x = number of successes
p = probability of getting success in one trial
n = 5
x = 2
p = 0.712
You should be able to plug these values into your graphing calculator to find the answer.
Use BinomPDF as BinomPDF is the probability that there will be X successes in n trials if there is a probability p of success for each trial.
If you have a Ti-84
Push 2nd, then vars. Scroll down until you see BinomPDF and then click on it. From there plug in the values and push paste.
The output should be P ( 2 ) = 0.121098133
Which can be rounded to P ( 2 ) ≈ 0.121