alembcke5160 alembcke5160
  • 17-08-2017
  • Mathematics
contestada

If exactly three of the taxis are in need of repair, what is the probability that every airport receives one of the taxis requiring repairs?

Respuesta :

freedFromDesire freedFromDesire
  • 17-08-2017
Probability is:

x- all taxis
3- taxis in need of repair

Prob. = x! / 3! * (x-3)!
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