Respuesta :
you gots 2 sides of a coin
we gots
HH
TT
HT
TH
so both on tails is 1 out of 4 possiblities
so probablity would be 1/4
we gots
HH
TT
HT
TH
so both on tails is 1 out of 4 possiblities
so probablity would be 1/4