Compute the Mean and Standard Deviation of a Binomial Random

question 59

Multiple Choice

Compute the Mean and Standard Deviation of a Binomial Random Variable
-A quiz consists of 190 true or false questions. If the student guesses on each question, what is the mean number of correct answers

• A) 95
• B) 0
• C) 190
• D) 38

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Definitions:

P-Value

A statistical measure that helps researchers determine if their hypothesis is supported, indicating the probability of observing the obtained results, or more extreme, if the null hypothesis is true.

Power of the Test

The probability that a statistical test will correctly reject a false null hypothesis, or its ability to detect an effect when there is one.

True Value

The actual or real value of a parameter which is estimated in a study.

Sample Size

The number of individual observations or data points collected in a sample from a larger population.