The Expected Value of the Sampling Distribution of the Sample $\mu$

question 61

Multiple Choice

The expected value of the sampling distribution of the sample mean equals the population mean $\mu$ :

• A) only when the population is normally distributed.
• B) only when the sample size is large.
• C) only when the population is infinite.
• D) for all populations.

Understand the relationship between memory development and physical actions in infants.

Recognize the importance of physical and cognitive milestones in the first two years of life.

Understand the basics of object permanence and its representation in infants' behavior.

Understand the concept of representational thinking in children.

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Definitions:

Observed Frequency

The observed frequency is the actual number of times an event occurs in a dataset or experiment.

Expected Frequency

Expected frequency is a term in statistics indicating the number of times an outcome is anticipated to occur within a set of observations, based on probability.

Sampling Distribution

The distribution of probabilities for a statistic that is based on a random sample.

Chi-squared Distribution

A distribution that arises from the sum of the squares of a number of independent random variables.