I There Is Not One, but a Family of Chi-Square

question 77

Multiple Choice

i. There is not one, but a family of chi-square distributions. There is a chi-square distribution for 1
Degree of freedom, another for 2 degrees of freedom, another for 3 degrees of freedom, and so on.
ii. The shape of the chi-square distribution depends on the size of the sample.
iii. Small differences between observed and expected frequencies are due to chance.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Efficiency

The effectiveness with which resources are used to achieve a desired outcome, maximizing outputs from given inputs without waste.

Transferable Rights

Rights that can be assigned or transferred from one party to another.

Pollution

The presence or introduction into the environment of contaminants that cause harm or discomfort to organisms and the environment.

Government

The organization or system through which a community or nation is governed and regulated.