The Following Class Intervals for a Frequency Distribution Were Developed

question 105

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: $\begin{array}{c}\begin{array}{lll}\text {Salary }\\(\$1,000s) \\\text {28 -under 31}\\\text {31-under 35}\\\text {34 -under 37}\\\text {39-under 40}\end{array}\begin{array}{c}\text { Number of Graduates }\\\\-\\-\\-\\-\\\end{array}\end{array}$


Before data were 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)The class widths are too large.
• D)The second and the third interval overlap.
• E)There are too few intervals.

---

Definitions:

Solvent

Liquid portion of a solution that serves to dissolve a solute.

Solution

Fluid (the solvent) that contains a dissolved solid (the solute).

Tonicity

The ability of a surrounding solution to cause a cell to gain or lose water, depending on the concentration of solutes.

Turgor Pressure

The pressure of water pushing the plasma membrane against the cell wall of a plant cell, contributing to the cell’s rigidity.