The Memoryless Property of the Exponential Distribution Describes the Fact

question 45

Multiple Choice

The memoryless property of the exponential distribution describes the fact that:

• A) the equations associated with the exponential distribution are so difficult that rarely can anyone remember how to calculate probability without help.
• B) at any point in time, the exponential random variable forgets or ignores what happened earlier; the future is independent of the past.
• C) the probability associated with any one span of time is dependent upon the span of time that preceded it.
• D) the exponential distribution is the only distribution that exhibits an inverse relationship concerning the past.In other words, the more time that precedes an event, the greater the probability of present occurrence.

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Definitions:

Bone-mineral Density

A measure of the amount of minerals (mainly calcium) contained in a certain volume of bone, indicating bone strength and risk for osteoporosis.

Standard Deviations

A measure of the amount of variation or dispersion of a set of values from the mean.

Diagnostically

Pertaining to or conducive to the determination or analysis of a disease's nature and its differentiation from other conditions.

Menopause

The permanent cessation of menstruation, marking the end of a woman's reproductive years, typically occurring in middle age.