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15. Imagine that the true speed of a car traveling on a road is 70 km/h. With a radar
gun, we determine the speed of the car five times. Which of the following
measurements represents the most accurate data set?
a. 70, 75, 78, 77, 80
b. 72, 72, 70, 68, 68
73, 73, 73, 73, 73
d. 70, 69, 70, 70, 118

Respuesta :

onyebuchinnaji

The measurement that represents the most accurate data set is second measurement (b. 72, 72, 70, 68, 68).

Average speed of the car in each data set

The average speed of each car in the given data set is calculated as follows;

Average speed of the car in the first data set

v(avg) = (70 + 75 + 78 + 77 + 80) / 5

v(avg) = 76 km/h

Average speed of the car in the second data set

v(avg) = (72 + 72 + 70 + 68 + 68) / 5

v(avg) = 70 km/h

Average speed of the car in the third data set

v(avg) = (73 + 73 + 73 + 73 + 73) / 5

v(avg) = 73 km/h

Average speed of the car in the fourth data set

v(avg) = (70 + 69 + 70 + 70 + 118) / 5

v(avg) = 79.4 km/h

Thus, the measurement that represents the most accurate data set is second measurement (b. 72, 72, 70, 68, 68).

Learn more about average of data set here: https://brainly.com/question/19243813

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