Alphie, sorry I am late in responding. Let's see. I could tell you to 'search ET!' but I won't.
<center><a href="http://glass.ed.asu.edu/stats/lesson3/"><img src="http://glass.ed.asu.edu/stats/lesson3/normal.jpg"width=150 height=100></img></a><font size=1><i>
Normal Distribution</i></font></center>
I don't think any short answer will be satisfying, nor will a long answer fail to bore you. I'll be short. Under "Normal" circumstances, two standard deviations seems to be the limit on what, 95% of events under observation? Most of life seems to be restrained, held in check, surrounded by a boundary. It's a form of order imposed on what would otherwise be chaos. If so, there is a Restrainer.
Also, the bible teaches clearly that events that are random to man are not random to the Almighty. Some might see this as superstition, what they called in Anthropology 101, a 'convenient myth.' And yet, science supports it -- if what we call randomness were <i>truly</i> random, why would 95% of any group of events be restrained to some fixed, relatively small distance from the mean (and 99.7% to a slightly larger distance)?
Randomness, unpredictability, coincidence, accidents. These things are out of man's control. But, if there were an Almighty, would such things be out of His control? It would be a contradiction. (He may choose to withold control. In fact, I believe He does in some cases. But He restrains the vast majority of possible outcomes within a relatively small boundary. Like a parent who lets a child play in a back yard that's fenced in, God has made life, like the earth we live on, to human scale.)
Well, so much for being short. Not trying to prove anything here. Just trying to offer you an answer to your question.