The Cashier Service Time at the Local Branch of the Rivertown

question 38

Multiple Choice

The cashier service time at the local branch of the Rivertown bank has an exponential distribution with a mean of 2.5 minutes. What is the probability that the service time exceeds 3 minutes?

• A) .3012
• B) .6988
• C) .4346
• D) .5654
• E) .0821

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Definitions:

Uterine Wall

The muscular layer of the uterus that expands during pregnancy to accommodate a growing fetus and contracts during childbirth.

Implantation

The attachment of the blastocyst to the uterine wall, occurring at about day 6.

Zygote

The initial cell formed when a sperm cell and an egg cell fuse, marking the beginning of a human's genetic makeup.

Phenotype

The observable characteristics or traits of an organism, such as its morphology, development, biochemical or physiological properties, phenology, behavior, and products of behavior, resulting from the interaction of its genotype with the environment.