A Random Sample of N = 9 Scores Is Selected

question 21

Multiple Choice

A random sample of n = 9 scores is selected from a normal distribution with μ = 80 and σ = 12.What is the probability that the sample mean will be between 76 and 84?

• A)0.9974
• B)0.6426
• C)0.3830
• D)0.2586

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Definitions:

Temporal Lobes

The temporal lobes are regions of the brain located on each side of the brain, responsible for processing auditory information and encoding memory.

Neurons

are specialized cells in the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Speech

The verbal expression of or the ability to express thoughts and feelings by articulating sounds.

Synaptogenesis

The formation of synapses between neurons in the brain, a critical process in neural development.