Question

A dice is rolled once. What is the probability of getting a four?

• A. $\frac{1}{6}$
• B. $\frac{1}{3}$
• C. $\frac{1}{2}$
• D. $1$

Answer 1

The correct option is A $\frac{1}{6}$

$P\left(E\right)=\frac{NumberofoutcomesfavourabletoE}{Numberofallpossibleoutcomesoftheexperiment}$
Possible outcomes on a single roll of a dice are 1, 2, 3, 4, 5 and 6. So, the number of outcomes favourable to event E, i.e getting a four, is 1.
Number of all possible outcomes for throwing a dice is 6.
$\therefore$$P\left(E\right)=\frac{1}{6}$