Question

Which is the example of probability in real life?
A.Passing an exam
B.Tossing of a coin
C.Throwing a dice
D.All of the above

Answer 1

Hint: We will use the general definition of the probability for determining the correct answer of the given question. And after that, we will check each and every option based on the definition to be called as an example of probability in real life.

Complete step-by-step answer:
We need to choose the correct option for the question which states the example of probability in real life.
For this, let us first see the definition of probability.
Definition: In mathematics, probability is one of its branches which is a description about the likeliness of an event to occur or to tell how likely an event is to happen or it is true.
Probability in daily life is used to make those decisions or to draw a possible outcome when we have no idea about a certain outcome or we are not sure about the result (outcome).
Now, let us move towards the options.
Option (A) states passing an exam. Now, if we see no one can be certain if she/he will pass in the exam or fail (irrespective of the preparation a student has done). So, we can say that the student can either fail or pass. There are two possible outcomes and there is no possibility other than that and we are talking about the passing of a student. So, we can say that the probability can be used here to determine the outcome. Hence, option(A) is correct.
Option(B) states that tossing of a coin: Here as well, there are two possibilities that either a head will appear or a tail. So here also, we can use probability for determining the possible result. Hence, option(B) is also correct.
Option(C) states throwing of a dice: We can say that since the dice has only 6 faces, there are only 6 possible outcomes that either 1, 2, 3, 4, 5, or 6 will appear on the top of the dice. So, we can say that probability can be used here to determine the possible result. Hence, option(C) is also correct.
Therefore, we will choose option(D) since all of the above options are true.

Note: In such questions, you are required to be familiar with the terms used in the chapters because such MCQs are totally based on the definitions of major terms and concepts. You need to check the possibility of each option since there can be more than 1 option correct. Also, the probability of an event always lies between 0 and 1. If it is 0 that means there is no chance the event will occur and if it is 1 then that means the event will surely occur.