A Local Airport Keeps Track of the Percentage of Flights $$\begin{array} { l l } 76 & 9 \\77 & 114 \\78 & \\79 & 07 \\80 & 88 \\81 & 2 \\82 & 1 \\83 & 88\end{array}$$

question 275

Multiple Choice

A local airport keeps track of the percentage of flights arriving within 15 minutes of their scheduled arrivals. The stem-and-leaf plot of the data for one year is below. The leaf unit is 0.1.
$$\begin{array} { l l } 76 & 9 \\77 & 114 \\78 & \\79 & 07 \\80 & 88 \\81 & 2 \\82 & 1 \\83 & 88\end{array}$$
-In developing a histogram of these data,how many classes would be used?

• A)4
• B)5
• C)6
• D)7
• E)8

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