contestada

When Dalvin runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard deviation of 1 second. Using the empirical rule, what percentage of races will his finishing time be between 64 and 66 seconds?

Respuesta :

xKelvin

Answer:

68%.

Step-by-step explanation:

Dalvin's finishing time is normally distributed with a mean of 65 seconds and a standard deviation of 1 second.

Under the empirical rule, 68% of the results will be within 1 standard deviation.

Since the standard deviation is 1 second, 68% of Dalvin's finishing time will be between 64 and 66 seconds.

Otras preguntas