Displaying and Describing Numerical Data - Questions
🔒 Unlock Full Access
You're currently viewing a preview. Sign up or log in to access all 4 questions and complete solutions.
The ages of students at a school were recorded.
\begin{array}{|c|c|}
\hline \text { Age } & \text { Frequency } \\
\hline \mathbf{4 - 6} & 98 \\
\hline \mathbf{7 - 9} & 198 \\
\hline \mathbf{1 0 - 1 2} & 212 \\
\hline \mathbf{1 3 - 1 5} & 245 \\
\hline \mathbf{1 6 - 1 8} & 204 \\
\hline \text { Total } & 957 \\
\hline
\end{array}
a) How many students were younger than 10?
b) Which age occurred the most?
c) What percentage of students were older than 15?
\begin{aligned}
\text { a) }\quad & \text{ Number younger than } 10 \text { were } \\
&\text { the totals } 98+198=296\\
\text { b) }\quad & \text { The } \text { highest frequency }=245 \\
&\therefore \quad 13-15\\
\text{c) }\quad &\% =\frac{204}{957} \times 100 \% \\
&\quad\, =21.3 \%
\end{aligned}
📚 Want More Questions?
There are 3 more questions available. Create your free account to access the complete question set with detailed solutions.