"Mxsmanic" wrote in message
...
Steve Foley writes:

Basic arithmetic is beyond you too?

1 + 1 = 2.

If the probability of any single engine failing is p, then the
probability of either of two engines failing is 1-(1-p)^2.


BZZZZZZZZZZZZTTT Wrong again stupid.

Try running your coin toss through this formula.

Tails = engine failure. 50% chance of failure.

Lemme know how you make out.