Answer:
5.48x10~6
Step-by-step explanation:
Apex
Answer:


Step-by-step explanation:
We have the following equation:

We can use the quadratic formula given by:

Where:

And replacing we got:


The empirical rule tells you 68% of normally-distributed observations are within 1 standard deviation of the mean.
_____
This is a number you may want to memorize, along with the numbers for 2 (95%) and 3 (99.7%) standard deviations.