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.The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The mean speed of the automobiles traveling on this road is the closest to ____.
A) 55.0
B) 57.8
C) 64.1
D) 65.0

Question

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.The following frequency distribution represents the number of hours studied per week by a sample of 50 students.  The mean speed of the automobiles traveling on this road is the closest to ____.
A) 55.0 
B) 57.8 
C) 64.1 
D) 65.0

Quizplus · Accepted Answer

The Answer of 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.The following frequency distribution represents the number of hours studied per week by a sample of 50 students.  The mean speed of the automobiles traveling on this road is the closest to ____.
A) 55.0 
B) 57.8 
C) 64.1 
D) 65.0

Automobiles Traveling on a Road with a Posted Speed Limit