Determine the Number of Outcomes That Comprise the Specified Event

question 9

Multiple Choice

Determine the number of outcomes that comprise the specified event.
-The number of hours needed by sixth grade students to complete a research project was recorded with the following results. $\begin{array}{cc}\text { Hours } & \text { Number of students (f) } \\\hline 4 & 25 \\5 & 25 \\6 & 24 \\7 & 10 \\8 & 14 \\9 & 6 \\10+ & 5\end{array}$

A student is selected at random. The event $\mathrm { A }$ is defined as follows.
$\mathrm { A } =$ the event the student took more than 7 hours
Determine the number of outcomes that comprise the event (not A) .

• A)84
• B) 35
• C) 74
• D) 25

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Definitions:

Percentage

A fraction or ratio represented as a part of 100.

Currency

A medium of exchange used in economic systems, typically issued by a governmental body and accepted within a particular geographic territory.

Energy Exchange

A process by which energy is transferred from one system or object to another, often seen in ecosystems as the transfer of energy from producers to consumers through food chains.

Living Systems

Complex networks of interacting organisms and their physical environment, functioning together as a coherent group for energy flow, reproduction, and adaptation.