### Two coins are tossed simultaneously. What is the probability of getting both tails?

$\dfrac { 1 } { 4 }$

Step by Step Explanation:
1. When two coins are tossed simultaneously, the possible outcomes are $HH, HT, TH,$ and $TT$.

Total number of possible outcomes = $4$.

2. Let $E$ be the event of getting both tails.

So, the favourable outcome is $TT$.

Number of favourable outcomes = $1$. \begin{aligned} \therefore \space P(\text{getting both heads}) = P(E) = \dfrac { \text {Number of favourable outcomes }} { \text { Total number of possible outcomes } } = \dfrac { 1 } { 4 }. \end{aligned}