The following table represents a grouped frequency distribution of the number of hours spent at the library per week for 58 students. What is the class width?
\begin{tabular}{|c|c|}
\hline Hours & Number of Students \\
\hline $0.0-1.9$ & 5 \\
\hline $2.0-3.9$ & 17 \\
\hline $4.0-5.9$ & 16 \\
\hline $6.0-7.9$ & 14 \\
\hline $8.0-9.9$ & 6 \\
\hline
\end{tabular}
Answer
Final Answer: The class width is \(\boxed{1.9}\).
Step 1 ：The class width in a frequency distribution table is the difference between the upper and lower boundaries of any class or category.
Step 2 ：In this case, we can calculate the class width by subtracting the lower boundary of a class from the upper boundary.
Step 3 ：For example, for the first class, the upper boundary is 1.9 and the lower boundary is 0.0.
Step 4 ：So, the class width is 1.9 - 0.0 = 1.9.
Step 5 ：We can confirm this by checking the other classes as well.
Step 6 ：Final Answer: The class width is \(\boxed{1.9}\).
