A Recent Study Showed That the Length of Time Required

question 19

Multiple Choice

A recent study showed that the length of time required for customers to resolve their computer issues with online support is normally distributed with a mean equal to 0.35 hours with a standard deviation of 0.2 hours. Given this information, what is the probability of resolution will take between 10 and 15 minutes?

• A) About 0.13
• B) Nearly 0.00
• C) About 0.31
• D) About 0.87

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Definitions:

Narrow Range

A limited or confined scope or extent, often referring to variations or fluctuations within a restricted interval.

Loud

Loud describes a sound that has a high volume or intensity, often capable of causing a noticeable reaction or discomfort in listeners.

dB

A unit of measurement that indicates the relative loudness of sounds in terms of the logarithmic scale, with higher numbers representing louder sounds.

Amplitude

Stimulus intensity; in audition, roughly equivalent to loudness, graphed by the increasing height of a sound wave.