The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean...

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The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean...

The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean of the frequency distribution. Round your answer to one more decimal place than is present in the original data values.

Speed (mph) / Cars 
//////////////////
   30-39    / 3   
   40-49    / 14
   50-59    / 1
   60-69    / 15
   70-79    / 17

math Statistics-And-Probability

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Answer 1

Answer #1

The statistic software output for this problem is :

Approximate summary statistics:
Using counts in Cars

Column	n	Mean
Speed	50	60.3

The mean of the frequency distribution = 60.3

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Answer 2

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