Camashaly Needs to Gather Some Additional Statistics on Its Clients

question 34

Short Answer

Camashaly needs to gather some additional statistics on its clients.An employee at Camashaly has created an initial query as shown in the accompanying figure that calculates the average amount paid.The employee is unsure what aggregate functions to use for additional calculations.

Which aggregate function will count the number of records?

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Definitions:

Narrow Sense Heritability

Narrow sense heritability is the proportion of the total phenotypic variance of a trait attributable to the additive effects of alleles (the additive genetic variance). This is the component of variance that causes offspring to resemble their parents, and it causes populations to evolve predictably in response to selection.

Genetics

The study of heredity, or how characteristics of organisms are transmitted from one generation to the next.

Environment

The surrounding or conditions in which an organism lives or operates, encompassing both natural and artificial elements.

Evolutionary Change

A process through which the genetic makeup of a population changes over generations, driven by mechanisms such as natural selection, mutation, gene flow, and genetic drift.