You Receive a Score of 88 on a Statistics Examination

question 39

Multiple Choice

You receive a score of 88 on a statistics examination that has a mean of 76 and a sample standard deviation equal to 8. Your standard score on the test is equal to.

• A)+0.0
• B)+1.5
• C)+1.0
• D)-1.5

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Definitions:

Anagenesis

Refers to wholesale transformation of a lineage from one form to another. In macroevolutionary studies, anagenesis is considered to be an alternative to lineage splitting or speciation.

Lineage

Lineage refers to a chain of ancestors and their descendants. A lineage may be the successive generations of organisms in a single population, the members of an entire species during an interval of geological time, or a group of related species descending from a common ancestor.

Evolutionary Faunas

Groups of animals that share a similar ecological role and have a continuous evolutionary history across geological times.

Cambrian Fauna

Diverse groups of marine animals that emerged during the Cambrian Period, marked by a rapid increase in complexity and variety of life forms.