An Observer in a Lighthouse a = 340 Feet Above

question 243

Multiple Choice

An observer in a lighthouse a = 340 feet above sea level observes two ships directly offshore. The angles of depression to the ships are 4º and 6.5º (see figure) .How far apart are the ships? Round your answer to one decimal place.
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• A)1878.1 ft
• B)1879.1 ft
• C)1880.1 ft
• D)1881.1 ft
• E)1882.1 ft

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Definitions:

Chi-Squared Distribution

A probability distribution that arises in statistics when a normal distribution is squared, commonly used in significance testing.

Degrees of Freedom

The count of distinct values or measures that can be allocated to a statistical distribution while adhering to all restrictions.

Chi-Squared Distribution

A probability distribution that is commonly used in hypothesis testing and models the distribution of sum of squares of independent standard normal random variables.

Chi-Square Distribution

A probability distribution that is used in statistical significance tests, especially for categorical data.