Which of the Following Yields a Stratified Sample

question 126

Multiple Choice

Which of the following yields a stratified sample?

• A)All students in a class are divided into groups of 15.One student is randomly chosen from the 1st group,the remaining observations are every 15th student thereafter.
• B)The best 15 students,according to the opinion of the instructor,in a class are selected.
• C)All students in a class are grouped according to their gender.A random sample of 8 is selected from the males and a separate random sample of 7 is drawn from the females.
• D)The first 15 students in a class are selected without replacement.

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Definitions:

CREB

A cellular transcription factor that binds to certain DNA sequences to increase or decrease the transcription of specific genes.

Gene Transcription

The process by which the information encoded in a gene is converted into messenger RNA (mRNA) by the enzyme RNA polymerase, ultimately leading to protein synthesis.

Dendritic Spines

Small protrusions on dendrites of neurons that form synapses with axons, playing a key role in synaptic strength and plasticity.

Sensory Receptor

A specialized cell or cell structure that responds to external stimuli by sending signals to the nervous system, enabling perception of sensory information.