Question

If two coins are tossed then find the probability of the event that at least one tail turns up is:

• A. $\frac{1}{4}$
• B. $\frac{1}{3}$
• C. $\frac{1}{2}$
• D. $\frac{3}{4}$

Answer 1

Answer: (D)

$\frac{3}{4}$

2 coins tossed sample space $=(h,h),(h,t),(t,h),(t,t)$
Number of outcomes that have atleast one tail $=3$
probability is $\frac{3}{4}$