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Your answer is incorrectFor each variable, determine whether it is best thought of as discrete or continuousVariable(a) The intensity of a 1000-Hz tone judged by a participant to be equally as loud as a 500-Hztone of 50 decibels(b) The length of the arm of a heavyweight boxer(c) The number of personal-injury traffic accidents last week on Interstate 65 in Indiana(d) The number of damaged chromosomes on a petri dish following irradiation

User Mark Huk
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Before we begin answering, let us define discrete and continuous variables.

Discrete Variables: A discrete variable is a variable that can be obtained by counting. Examples of these are "the number of marbles in a bag", "students grade level", etc.

Continuous Variables: A continuous variable is defined as a variable that can take an uncountable set of values or an infinite set of values. In other words, it is a variable whose value is obtained by measuring. Examples are "height of students in class", "distance traveled between classes", etc.

OPTIONS

Option A: Continuous Variable.

The intensity of sound, or loudness, can only be gotten by measurement.

Option B: Continuous Variable.

Length is measured, not counted, and so it is continuous.

Option C: Discrete Variable.

We are counting each accident that happened, so it is discrete.

Option D: Discrete Variable.

Each chromosome can be counted, so it is discrete.

User Lisette
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