Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system. The following is a frequency distribution of speeds. 
(See the Excel Data File.) The mean speed of the automobiles traveling on this road is the closest to ________.
Definitions:
Correct Helping Verb
A verb that helps another verb to express tense, mood, or voice, and must agree in number and person with the main verb.
Math Anxiety
Math anxiety is a feeling of tension, apprehension, or fear that some people experience when engaging with mathematics.
Past Participle
A form of a verb, typically ending in -ed in English, that is used to create perfect tenses or as an adjective.
Helping Verb
A verb that accompanies the main verb in a sentence to help express its tense, mood, or voice.
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