Use the Following Information for Following Questions

question 21

Multiple Choice

Use the following information for following questions:.
The scatterplot below shows the relationship between the ages of women when they first married
and the ages when they had their first child. The correlation coefficient between the values is
-Can we use the regression equation to predict the age at which a woman has her first child for a woman who first married at the age of 50?

• A)Yes, we can always make predictions once we have a regression equation.
• B)Yes, we can make a prediction because the scatterplot shows a strong positive linear relationship.
• C)No, we cannot make a prediction because a woman who marries at age 50 is outside the range of our data.We would be extrapolating.

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Definitions:

Excitation

The process of stimulating activity in an organism or in any of its parts, often leading to increased activity or responsiveness.

Synapses

The junctions between neurons through which they communicate with each other using chemical or electrical signals.

Presynaptic Neuron

The neuron that sends a signal across the synapse to another neuron.

Neurotransmitter

Chemical substances released by neurons to transmit signals across a synapse to another neuron or to a muscle or gland cell.