The Speed of Sound Is 340 M/s

question 49

Multiple Choice

The speed of sound is 340 m/s. A plane flys horizontally at an altitude of 10,000 m and a speed of 400 m/s. When an observer on the ground hears the sonic boom the horizontal distance from the point on its path directly above the observer to the plane is:

• A) 5800 m
• B) 6200 m
• C) 8400 m
• D) 12,000 m
• E) 16,000 m

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Definitions:

Distribution

Describes the way values of a variable or data points are spread or dispersed across a range.

Degree Of Freedom

The number of independent pieces of information available to estimate another piece of information, often in statistical analysis.

Chi-Square Test

A statistical test used to determine if there is a significant association between two categorical variables.

Expected Cell Counts

Predicted frequencies in cells of a contingency table in statistics, assuming that the null hypothesis is true.