Use the Following to Answer the Question(s) Below

question 56

Multiple Choice

Use the following to answer the question(s) below.
A men's clothing store has determined the following probability distribution for the number of special size orders placed per month. The distribution is as follows:
Number Ordered Probability
0 0.10
5 0.10
10 0.12
15 0.30
20 0.38
-The standard deviation in the number of special size orders placed per month is

• A) 24.516
• B) 4.95
• C) 15.345
• D) 6.60
• E) 3.88

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Definitions:

Dike

A sheetlike intrusion that cuts across any layers in a host rock, commonly formed with a steep orientation.

Sill

A tabular igneous intrusion that parallels layers or other planar structures of the surrounding rock and which usually has a subhorizontal orientation.

Laccolith

A bulge-shaped igneous body that has domed and tilted overlying layers and that is observed or interpreted to have a relatively flat floor.

Felsic Magmas

Magma that is high in silica and light in color, which forms rocks such as granite and rhyolite upon cooling.