Concept explainers
A father rates his daughter as a 2 on a 7-point scale (from 1 to 7) of crankiness. In this example, (a) what is the variable, (b) what is the score, and(c) what is the
a.
Identify the variable.
Answer to Problem 1.1HD
The variable is level of crankiness.
Explanation of Solution
Variable:
A variable is a characteristic or a condition of the subject under study, which can take several values.
The characteristic under study is the level of crankiness of the daughter, as decided by the father.
b.
Identify the score.
Answer to Problem 1.1HD
The score is 2.
Explanation of Solution
The father provided a score of 2 on crankiness to his daughter. Thus, the score is 2.
c.
Identify the range of the variable.
Answer to Problem 1.1HD
The range of the variable is 1 to 7.
Explanation of Solution
The crankiness score may take values between 1 and 7, on a 7-point scale. The minimum possible value on the scale is 1 and the maximum possible value is 7. Thus, the range of the variable is 1 to 7.
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