Some Alpha Particles Pass Through Gold Foil with Very Little

question 25

Multiple Choice

Some alpha particles pass through gold foil with very little deflection mainly because the

• A)electric field is zero inside the foil.
• B)atoms of gold are mostly empty space.
• C)net charge of the gold atoms is zero.
• D)all of the above
• E)none of the above

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Definitions:

Population Variance

The variance computed for the entire population of data, representing the true variance of the data set.

Degrees of Freedom

The number of independent values in a statistical calculation that can vary without violating any constraints applied to them.

Chi-Squared Distribution

A statistical probability distribution which is the result of summing the squares of k independent standard normal variables.

Confidence Interval

A range of values used to estimate the true value of a population parameter with a certain level of confidence.