The Following Frequency Distribution Analyzes the Scores on a Math

question 7

Multiple Choice

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 90-99. $$\begin{array} { c c } \hline \text { Scores } & \text { Number of Students } \\\hline 50 - 59 & 2 \\60 - 69 & 4 \\70 - 79 & 6 \\80 - 89 & 15 \\90 - 99 & 5 \\\hline\end{array}$$

• A)89.5, 100.5
• B) 89.5 , 100.5
• C)90.5 , 99.5
• D)89.5, 99.5

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Definitions:

Oil and Gas

Naturally occurring hydrocarbons found in geological formations beneath the Earth's surface, used as fuel and in chemical production.

Coal

A combustible black or brownish-black sedimentary rock formed from plant remains, primarily consisting of carbon and used as a fossil fuel.

Granitic Intrusion

The forced entry of magma composed mainly of quartz and feldspar into surrounding rock, cooling and solidifying to form granite.

Salt Dome

A type of geological structure formed when a thick bed of evaporite minerals (mainly salt) found at depth intrudes vertically into surrounding rock layers.