Question

1. what does the k in the binomial formula represent?

a. probability of success
b. total number of trials
c. probability of failure
d. number of successes in n trials

Explanation:

In the binomial formula \(P(X = k)=\binom{n}{k}p^{k}(1 - p)^{n - k}\), \(n\) is the total number of trials, \(p\) is the probability of success, \(1-p\) is the probability of failure, and \(k\) represents the number of successes in \(n\) trials.

Answer:

d. Number of successes in \(n\) trials