The Sample Variance S² Is an Unbiased Estimator of the Population

question 64

Multiple Choice

The sample variance s² is an unbiased estimator of the population variance σ² when the denominator of s² is

• A)n + 1
• B)n
• C)n − 1

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Definitions:

Babbling

Babbling is a stage in child language acquisition during which infants spontaneously produce sounds and syllables unrelated to the language spoken around them, indicating early speech development.

Spoken Sounds

The audible units of communication used in verbal language.

Receptive Language

The ability to understand or comprehend language heard or read.

Telegraphic Speech

A stage in language development in young children where speech is concise and missing grammatical markers, often including only essential content words.