Suppose a survey of adults and teens (ages 12-17) in a certain country was conducted to determine the number of texts sent in a single day.
(a) Construct a relative frequency distribution for adults.
(b) Construct a relative frequency distribution for teens.
(c) Construct a side-by-side relative frequency bar graph.
(d) Compare the texting habits of adults and teens.
\begin{tabular}{lcc}
\hline Number of Texts & Adults & Teens \\
\hline None & 164 & 16 \\
\hline $1-10$ & 974 & 147 \\
\hline $11-20$ & 257 & 70 \\
\hline $21-50$ & 254 & 122 \\
\hline $51-100$ & 135 & 115 \\
\hline $100+$ & 147 & 189 \\
\hline
\end{tabular}
(a) Complete the table below.
\begin{tabular}{l|l|l}
\hline Number of Texts & \multicolumn{2}{c}{ Adults } \\
\hline None & & \\
\hline $1-10$ & & \\
\hline $11-20$ & & \\
\hline $21-50$ & & \\
\hline $51-100$ & & \\
\hline $100+$ & & \\
\hline
\end{tabular}
(Round to three decimal places as needed.)
Answer (2)
The asthenosphere consists of many varieties of rock - mostly in a semi-molten condition. The temperatures reach levels high enough for most of the rock to turn soft and almost plastic-like. This soft, malleable (vocab word!) layer supports the lithosphere - consequently creating earthquakes when the plates above it shift. Just imagine a few pieces of play-do on top of a thing of slime (like the type you would get at a carnival). If you moved even one of the play-do pieces, it would move and push into another one of the "plates" - therefore creating an earthquake. (That's a whole different lesson, so I won't go into that.) I hope this answered your question fully!
The asthenosphere is a semi-molten layer beneath the lithosphere, primarily solid but capable of flowing over time. It plays a crucial role in the movement of tectonic plates due to convection currents from the Earth's core. This movement can lead to geological events such as earthquakes and mountain formation.
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