Question

If three coins are tossed simultaneously the probability of getting at least one head is

• A. 1/8
• B. 3/8
• C. 1/2
• D. 7/8

Answer 1

The correct option is D 7/8

Probability of getting no head
$=\frac{1}{2^3}$

$\therefore$ Probability of getting at least one head
$=1-\frac{1}{2^3}=\frac{7}{8}$