A Test Score of 48

question 14

Multiple Choice

A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z score corresponding to the given value and use the z score to determine whether the value is significant. Consider a score to be significant if its z score is less than -2.00 or greater than 2.00 . Round the z score to the nearest tenth if necessary.

• A) -17.6 ; significant
• B) -1.6 ; significant
• C) -1.6 ; not significant
• D) 1.6 ; not significant

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Definitions:

Neurons

Electrically excitable cells that process and transmit information through electrical and chemical signals in the nervous system.

Glia

Non-neuronal cells in the central and peripheral nervous systems that provide support, protection, and nutrition to neurons.

Prenatal Effects

The impacts on a developing fetus in the womb due to various environmental, genetic, or maternal factors.

Brain Plasticity

The brain's capacity to change and adapt by forming new neural connections, allowing for learning and recovery from injury.