Answer:
C)95%
Step-by-step explanation:
According to the oxford math center,
"The Empirical Rule
The Empirical Rule gives us a rule of thumb for approximating the proportion of a Normal distribution that falls within 1, 2, or 3 standard deviations of its mean.
Also called the 68-95-99.7 rule in some texts, for what will soon be obvious reasons, the Empirical Rules states that approximately
68% of a Normal distribution can be found within 1 standard deviation of its mean
95% of a Normal distribution can be found within 2 standard deviations of its mean
99.7% of a Normal distribution can be found within 3 standard deviations of its mean
"
We find that the deviation time is 2 min.
Therefore, we use the information given by the oxford math center and gather that it is C, or, 95 percent.
