In One Year, You Meet 52 People Who Are Each

question 178

Multiple Choice

In one year, you meet 52 people who are each unemployed for one week and eight people who are each unemployed for the whole year. What percentage of the unemployment spells you encountered was short-term, and what percentage of the unemployment you encountered in a given week was long-term?

• A)52 percent and 13.3 percent
• B)52 percent and 88.9 percent
• C)86.7 percent and 13.3 percent
• D)86.7 percent and 88.9 percent

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Definitions:

Spatial Summation

Summation of the local potentials in which two or more action potentials arrive simultaneously at two or more presynaptic terminals that synapse with a single neuron.

Action Potentials

Electrical impulses that travel along the membrane of nerve cells, allowing them to communicate with other cells.

Presynaptic Terminals

The end points of nerve cells (neurons) where neurotransmitters are released to transmit signals to other neurons or muscles.

IPSP

Inhibitory postsynaptic potential; a synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.