I a Probability Is Usually Expressed as a Decimal, Such

question 113

Multiple Choice

i. A probability is usually expressed as a decimal, such as 0.70 or 0.27, but it may be given as a fraction, such as 7/10 or 27/100.
Ii) The probability of 1 represents something that is certain to happen.
iii. The probability of 0 represents something that cannot happen.

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

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Definitions:

Equality

The state or quality of being identical, equal, or equivalent in value, measure, significance, etc.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution, minus the number of parameters estimated.

Chi-Square Distribution

A statistical distribution that represents the distribution of the sum of the squares of k independent standard normal random variables, often used in hypothesis testing.

Single Population Variance

A measure of the variance of a set of values in a single group or population.