ashlyolivas
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When Adam runs the 400 meter dash, his finishing times are normally distributed
with a mean of 77 seconds and a standard deviation of 3 seconds. If Adam were to run
49 practice trials of the 400 meter dash, how many of those trials would be between
81 and 83 seconds, to the nearest whole number?

Respuesta :

laguayo12

Answer:

400 meter dashes run in 77-3 seconds were accomplished by running the first and second 400 meters in a mean time of (81.83)seconds, respectively. 400-meters run in 83  seconds were run with the first and second 81 covered in mean times of 21.7 (20.8-22.7) and 23.8 (22.5-25.0). is what i think but im not sure

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