All of the Following Are Simple Steps for Protecting the Water

question 18

Multiple Choice

All of the following are simple steps for protecting the water supply EXCEPT

• A)taking showers instead of baths.
• B)watering lawns and garden plants in mid-afternoon.
• C)fixing leaky faucets.
• D)not pouring old medicines down the drain.

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Definitions:

Standard Normal Variable

A random variable that has a mean of 0 and a standard deviation of 1, following the standard normal distribution.

Standard Normal Curve

The graphical representation of a normal distribution that has a mean of zero and a standard deviation of one, used in probability theory and statistics.

Z-score

A statistical measure representing the number of standard deviations a data point is from the mean.

Percentile

An indicator showing the value beneath which a certain percentage of data points in a collection of data lies.