Use the Figure to the Right to Answer the Next

question 37

Multiple Choice

Use the figure to the right to answer the next problem. A beaker is filled with water.A small plastic container contains a solid bar of aluminum,which has a mass of 40 g,and is placed on the water so that it floats.The water level reads 60 ml.Next,the bar of aluminum is taken out of the container and placed in the water so that it sinks to the bottom.
-By how much does the water level change? (density of Al is 2.7 g/cm³)

• A)40 ml
• B)14.8 ml
• C)25.2 ml
• D)0 ml
• E)30 ml

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Definitions:

Z-axis

The axis in a three-dimensional coordinate system representing the depth, perpendicular to both the X-axis (horizontal) and Y-axis (vertical).

Standard Deviations

A metric indicating the extent of variability or spread in a collection of values, denoting how far away the values deviate from the average.

Standard Normal Distribution

A type of normal distribution where the mean is 0 and the standard deviation is 1, used in statistics for z-score calculations.

Variance

A statistical measurement of the dispersion or spread of a set of data points, indicating how much the individual data points differ from the mean.