Find the Mean of the Data Summarized in the Given

question 18

Multiple Choice

Find the mean of the data summarized in the given frequency distribution.
-The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed.
$$\begin{array} { r | r } \text { Speed (mph) } & \text { Cars } \\\hline 30 - 39 & 3 \\40 - 49 & 16 \\50 - 59 & 52 \\60 - 69 & 16 \\70 - 79 & 13\end{array}$$

• A) 59.3 mph
• B) 56.5 mph
• C) 62.2 mph
• D) 54.5 mph

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