The Following Class Intervals for a Frequency Distribution Were Developed

question 86

Multiple Choice

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: Before data was collected, someone questioned the validity of this arrangement. Which of the following represents a problem with this set of intervals?

• A) there are too many intervals
• B) the class widths are too small
• C) some numbers between 18,000 and 30,000 would fall into two different intervals
• D) the first and the second interval overlap
• E) None of the choices are correct, there are no problems with the intervals

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Definitions:

Hyperpolarize

To increase the polarization or difference in electric charge across a membrane, typically making it more negative inside compared to outside.

Na+

Na+, or sodium ion, is an essential electrolyte in the body, playing key roles in fluid balance, nerve signal transmission, and muscle contraction.

K+

The symbol for potassium ions, which are essential for various physiological functions, including nerve signal transmission and muscle contraction.

Ca2+

Calcium ions, a divalent metal cation crucial for many biological processes including muscle contraction, neurotransmitter release, and cell signaling.