THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 188

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A consumer group wanted to examine how long different life bulbs last.They selected three different light bulbs (60 watt,75 watt and 100 watt) from four different manufacturers.They generated the following statistics from the data.

-What is the value of "D"?

• A)484.67
• B)727.00
• C)246.99
• D)198.83

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Definitions:

Mean

The arithmetic average of a set of numbers, calculated by adding all the numbers and dividing by the count of numbers.

Standard Deviation

A gauge for determining the extent of fluctuation or diversity in data points around the central value.

Scores

Quantitative assessments that represent the outcomes or achievements of individuals based on performance or measurement criteria.

Variance

A measure of the dispersion of a set of data points around their mean value, demonstrating how spread out the data points are.