Hey! Your answer to this would be 
Yes the probability of an outcome that lies within 68% is a good indicator that lies in which standard deviation.
Answer:


Step-by-step explanation:
Use the Quadratic formula:

You can identify that, in this case:

Now you need to substitute these values into the formula:


Remember that:

Therefore,rewriting and simplifying, you get:



Then, you get the following roots:


1mm = .11m
You can get this by simplifying the numbers you already have
Answer:
17
Step-by-step explanation: