A die is rolled. What is the probability of the outcome is either 2 or a number less than 4?
1 Answer
P(2)
P(
Explanation:
As 2 is also a number less than 4, I will assume that they are two separate questions below.
We have to know that for a fair dice, there is an equal probability of getting any of the six numbers: 1, 2, 3, 4, 5, 6.
Hence, the probability of getting a certain number is
For getting a 2,
The total number of possible outcomes
The number of favourable outcomes (i.e. outcomes that fulfills the requirement)
Therefore, P(
For getting a number less than 4,
The total number of possible outcomes
The number of favourable outcomes (i.e. outcomes that fulfills the requirement)
Therefore, P(
Note: we use P() to refer to probability, with the words inside the bracket giving a brief description of the probability we are talking about.