Data Visualizationmedium
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A survey on daily screen time (in hours) for a group of individuals resulted in the following frequency distribution. The total number of individuals surveyed is .
\hline
\text{Screen Time (hours)} & \text{Frequency} \\
\hline
0 \le x < 2 & 40 \\
2 \le x < 4 & f_1 \\
4 \le x < 6 & 60 \\
6 \le x < 8 & f_2 \\
8 \le x < 10 & 20 \\
\hline
\end{array}$$
A histogram is constructed from this data. If the bar representing the $2 \le x < 4$ interval has a frequency density ($FD$) of $15$ individuals per hour, and the $6 \le x < 8$ interval has a frequency density of $5$ individuals per hour, which of the following statements are true?
A survey on daily screen time (in hours) for a group of individuals resulted in the following frequency distribution. The total number of individuals surveyed is .
\hline \text{Screen Time (hours)} & \text{Frequency} \\ \hline 0 \le x < 2 & 40 \\ 2 \le x < 4 & f_1 \\ 4 \le x < 6 & 60 \\ 6 \le x < 8 & f_2 \\ 8 \le x < 10 & 20 \\ \hline \end{array}$$ A histogram is constructed from this data. If the bar representing the $2 \le x < 4$ interval has a frequency density ($FD$) of $15$ individuals per hour, and the $6 \le x < 8$ interval has a frequency density of $5$ individuals per hour, which of the following statements are true?