A) \[\frac{1}{8}\]
B) \[\frac{7}{8}\]
C) \[\frac{1}{2}\]
D) \[\frac{3}{4}\]
Correct Answer: B
Solution :
When three coins are tossed together, then sample T space \[(HHH),(HHT),(HTT),(HTH),\] \[(THH),(THT),(TTT),(TTH)\] \[\Rightarrow \] \[n(S)=8\] Number of ways to get atleast one tail \[=(HHT),(HTT),(TTT),(HTH),(THT),(THH),\] \[(TTH)\] \[n(E)=7\] \[\therefore \] Probability, \[P(E)=\frac{n(E)}{n(S)}=\frac{7}{8}\]You need to login to perform this action.
You will be redirected in
3 sec