Concorde statistics
"Can remind you the school case of the Concorde ..
Only one crashed .. and the entire fleet was grounded.
Explain me this with statistics"
I know this is off-topic, but for the curious, the Concorde went, with just one crash, from being the safest a/c to being the most deadly; from 0 to 1/80,000 flights per crash, or 12 per million miles traveled, compared with the B737's rate of 0.41 per million.
The kicker is, the 737 has flown some 105 million flights compared with Concorde's 80,000 lifetime.
Such are statistics. (Explanation courtesy of Peter Olofsson, author of "Probabilities."