An Experiment Consists of Determining the Speed of Automobiles on a Highway

question 49

Multiple Choice

An experiment consists of determining the speed of automobiles on a highway by the use of radar equipment. The random variable in this experiment is a

• A)discrete random variable
• B)continuous random variable
• C)complex random variable
• D)simplex random variable

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Definitions:

Degrees Of Freedom

The count of the number of values in a calculation that are free to vary without infringing on the given data.

T-Distribution

A probability distribution that arises in the sampling distribution of sample means, especially useful when the sample size is small and the population standard deviation is unknown.

Normal Distribution

A bell-shaped curve where a large number of data points are symmetrically distributed around the mean, with fewer and fewer observations the further away from the mean.

Point Estimate

A single value or statistic that serves as the best guess or most reasonable approximation of a population parameter.