Consider the Following Stem and Leaf Plot: Stem Leaf

question 22

Multiple Choice

Consider the following stem and leaf plot: Stem Leaf
1 0, 2, 5, 7
2 2, 3, 4, 8
3 0, 4, 6, 6, 9
4 5, 8, 8, 9
5 2, 7, 8
Suppose that a frequency distribution was developed from this, and there were 5 classes (10-under 20, 20-under 30, etc.) .What would be the relative frequency of the class 20-under 30?

• A)0.4
• B)0.25
• C)0.20
• D)4
• E)0.50

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Definitions:

Population Members

The individuals or items that make up the entire group being studied in statistical analysis.

Selection Bias

A distortion of statistical analysis resulting from the method of collecting samples leading to an unrepresentative sample.

Target Population

The entire group about which researchers are interested in drawing conclusions or making generalizations, in a statistical study.

Biased Opinion

A preference or inclination that precludes an impartial judgment, often resulting from preconceived notions or prejudices.