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21) The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed. Speed (mph) Cars 3039 5 4049 18

21) The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed. Speed (mph) Cars 3039 5 4049 18 5059 50 6069 17 7079 10 A) 54.5 mph B) 60.9 mph C) 55.4 mph D) 58.2 mph

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