I did not understand how to solve this at all. Can someone please explain in a clear, methodical way.

**68–95–99.7 rule** → You need to know this rule to solve this problem!

The question provide you withe the following info: the mean : 5.2 and std. deviation of .6.

Now, just plot the figure acc. to the rule and you’'ll get it

Yeah it did take a good amount of visualization to understand.