Question

Two unbiased coins are tossed simultaneously. The probability of getting two tails is

• A.
  $\frac{3}{8}$
• B.
  $\frac{1}{2}$
• C.
  $\frac{1}{4}$
• D.
  $\frac{1}{3}$

Answer 1

The correct option is C

$\frac{1}{4}$
Outcomes for two unbiased coins are HH, HT, TH, TT.

$\therefore$ Total number of outcomes = 4

The outcomes favourable for getting two tails is TT.
$\therefore$ Number of favourable outcomes = 1
$\therefore$ Required probability
$=\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}=\frac{1}{4}$
Hence, the correct answer is option c.