The Following Frequency Distribution Presents the Weights in Pounds (Lb)

question 19

Multiple Choice

The following frequency distribution presents the weights in pounds (lb) of a sample of visitors to a health clinic. $$\begin{array} { c c } \hline \text { Weight (lb) } & \text { Frequency } \\\hline 100 - 103 & 2 \\104 - 107 & 1 \\108 - 111 & 4 \\112 - 115 & 4 \\116 - 119 & 10 \\120 - 123 & 9 \\124 - 127 & 4 \\128 - 131 & 1 \\\hline\end{array}$$ What is the class width?

• A) 3
• B) 5
• C) 32
• D) 4

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Definitions:

Mitral Valves

Heart valves located between the left atrium and left ventricle that allow blood to flow in one direction: from the atrium into the ventricle.

Ventricular Filling

The phase of the cardiac cycle during which the ventricles of the heart fill with blood from the atria.

Hypertension

A medical condition characterized by persistently high blood pressure.

Blood Cholesterol

A fatty substance present in the blood, essential for normal body function but high levels can lead to cardiovascular diseases.