If a Binomial Distribution Applies with a Sample Size of N

question 136

Multiple Choice

If a binomial distribution applies with a sample size of n = 20, find the expected value, n = 20, p = 0.20.

• A) 2
• B) 3
• C) 4
• D) 5

---

Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values in a data set differ from the mean.

Normally Distributed

Describes a probability distribution that is symmetrical around the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Confidence Interval

A scope of values, sourced from statistical analysis of a sample, that is believed to contain the value of an undisclosed population parameter.

Margin of Error

An expression of the amount of random sampling error in a survey's results, indicating a range within which the true value lies with a certain level of confidence.