the square root of seven nines is 3162.27...

if the figure above were microseconds would be ~3.162 seconds.

John

"Tom Ring" wrote in message
. ..
Reg Edwards wrote:

Just prior to a General Election (of Members of Parliament) in the UK
I once asked a prospective MP what seven nines were. He didn't know!

Interesting that the same things have very different meanings.

In my current business 7 nines would mean roughly 3.16 seconds. Can you tell
me why?

tom
K0TAR