The Race Speeds (In Minutes)for the Top Eight Cars in a 200-Mile

question 58

Multiple Choice

The race speeds (in minutes) for the top eight cars in a 200-mile race are listed below. Use the range rule of thumb to estimate the standard deviation. Round results to the nearest tenth. $\begin{array}{llllllll}181.0 & 180.6 & 189.2 & 182.2 & 175.6 & 180.0 & 177.9 & 181.8\end{array}$

• A)1.1 minutes
• B)6.8 minutes
• C)7.5 minutes
• D)3.4 minutes

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Definitions:

Gray Limestone

A sedimentary rock composed mainly of calcium carbonate (CaCO3), typically characterized by its gray color, used in building and as an aggregate.

Stalagmite

A type of speleothem that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings.

Limestone Caves

Natural underground spaces formed by the dissolution of limestone by acidic water.

Sinkholes

Depressions or holes in the ground caused by the collapse of a surface layer, often due to the dissolution of underlying limestone.