A Normally Distributed Set of Population Scores Has a Mean

question 126

Multiple Choice

A normally distributed set of population scores has a mean of 65 and a standard deviation of 10.2. The mean, of the sampling distribution of the mean, for samples of size 48 equals _________.

• A) 1.35
• B) 60
• C) 65
• D) none of these

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Definitions:

Continuous Probability

Describes the likelihood of outcomes in situations where the range of possible values is an interval, allowing for any value within the range.

Discrete Random Variable

A variable that takes on a countable number of distinct values, often representing outcomes of a random process.

Expected Value

This is the mean of a random variable, representing the average outcome we would expect to see if we could repeat an experiment an infinite number of times.

Variance

A measure of the dispersion or spread of a set of data points, indicating how much the values differ from the mean of the set.