A Crying Baby Emits Sound with an Intensity of 8

question 58

Multiple Choice

A crying baby emits sound with an intensity of 8.0 × 10^-8 W/m². What is the intensity level for a set of quintuplets? The lowest detectable intensity is 1.0 × 10^-12 W/m².

• A) 79 dB
• B) 69 dB
• C) 56 dB
• D) 49 dB
• E) 36 dB

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Definitions:

Standard Deviation

A measure of the dispersion or spread of a set of data points relative to its mean, indicating how spread out the data points are.

Measures of Variability

Statistical metrics that describe the spread or dispersion within a data set, including range, variance, and standard deviation.

Coefficient of Variation

A normalized measure of the dispersion of a probability distribution or frequency distribution, often used to compare the degree of variation from one data series to another.

Standard Deviation

A measure of the dispersion or spread of a set of numbers, indicating how much variation there is from the average.