4. Statistics and Probability

Calculating Binomial Probabilities — Quiz

Test your understanding of calculating binomial probabilities with 5 practice questions.

Practice Questions

Question 1

In a binomial setting, which condition means each trial has only two possible outcomes?

Question 2

A binomial random variable $X$ counts the number of successes in $n$ independent trials with success probability $p$. Which formula gives $P(X=r)$?

Question 3

If $X\sim B(5,0.2)$, what is $P(X=0)$?

Question 4

If $X\sim B(10,0.3)$, what does $P(X\ge 1)$ equal?

Question 5

A binomial distribution has $n=8$ and $p=0.5$. Which statement about its mean is correct?