If the Mean Time Between In-Flight Aircraft Engine Shutdowns Is

question 23

Multiple Choice

If the mean time between in-flight aircraft engine shutdowns is 12,500 operating hours,the 90th percentile of waiting times to the next shutdown will be

• A)20,180 hours.
• B)28,782 hours.
• C)23,733 hours.
• D)18,724 hours.

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Definitions:

Hominins

refers to members of the human lineage after the split from the common ancestor with chimpanzees, including modern humans and extinct human species.

Ardipithecus

A genus of early hominids whose fossils provide insight into human evolution. It includes species such as Ardipithecus ramidus, which lived approximately 4.4 million years ago.

Human Family Tree

A diagrammatic representation showing the evolutionary relationships and lineage of human species from ancestral forms.

Neandertals

See Homo neanderthalensis.