Coin tossed 10 time and head come 3 time and tail come 7 time find the probablity not getting head

Coin tossed 10 time and head come 3 time and tail come 7 time find the

1.	Coin tossed 10 time and head come 3 time and tail come 7 time find the probablity not getting head
Answer» 7/10