chance

[warren]

in a Friends episode, the doctor said they were planting 5 eggs to get a 25% chance that one would attach...could someone explain that to me...I mean I would like the equation they are using

 

[Deleted member 4993]

in a Friends episode, the doctor said they were planting 5 eggs to get a 25% chance that one would attach...could someone explain that to me

There is 75% chance that none would attach.