Solve the Problem The Class 60-69 Has Twice the Frequency of the Class

question 22

Essay

Solve the problem.
-Suppose that a histogram is constructed for the frequency distribution shown below: $$\begin{array} { c | c } \text { Age } & \text { Frequency } \\\hline 30 - 39 & 11 \\40 - 49 & 23 \\50 - 59 & 17 \\60 - 69 & 12 \\70 - 89 & 6\end{array}$$ The class 60-69 has twice the frequency of the class 70-89. In the histogram, will the area of the bar for the class 60-69 be twice the area of the bar for the class 70-89? In other words, will areas be proportional to frequencies in this histogram? Explain your thinking. Are there any conditions under which areas are proportional to frequencies in histograms?

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Definitions:

Overwhelming Anxiety

Intense feelings of worry, nervousness, or fear that are strong enough to interfere with one's daily activities or well-being.

Neurotransmitter Activity

The action and interaction of chemicals in the brain that transmit signals between nerve cells.

Synapses

The junctions through which neurons communicate with each other or with other cells, involving the transmission of electrical or chemical signals.

Anxiety

A feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.