A Sample Is Selected from a Population with μ =

question 17

Multiple Choice

A sample is selected from a population with μ = 50 and σ = 12.If the sample mean of M = 56 produces a z-score of z = +1.00,then how many scores are in the sample?

• A)2
• B)4
• C)9
• D)16

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Definitions:

Basalt

A dark, fine-grained volcanic rock formed from the rapid cooling of magnesium- and iron-rich lava, characteristic of oceanic crust.

Basaltic Lava

A type of lava that flows from volcanic eruptions, characterized by its low viscosity and high iron and magnesium content.

Scoria Cones

Volcanic cones built from fragments of lava ejected from a single vent, typically with steep slopes.

Nonexplosive Eruptions

Volcanic eruptions characterized by the gentle outpouring of lava without significant explosive activity or the production of large ash clouds.