Respuesta :
if one standard deviation is 8.3 then 3 standard deviations is 3 (8.3) since it is +3 add the result to the mean.
Answer:
69.9
Step-by-step explanation:
If the value is +3 standard deviations from the mean, the z-score is 3.
324.969.9===x1−458.3x1−45x1
The value 69.9 is +3 standard deviations from the mean.