which of the following can be the probability of an event a 2, b -1, c 0.3 d 1.12
Answers
SOLUTION
TO CHOOSE THE CORRECT OPTION
which of the following can be the probability of an event
a. 2
b. - 1
c. 0.3
d. 1.12
CONCEPT TO BE IMPLEMENTED
In any random experiment if the total number of elementary ( simple) events in the sample space be n ( a finite number) among which the number of elementary events favourable to an event E , connected with the experiment be m then the probability of the event E is denoted by P (E) and defined as
Now the total number of possible outcomes = n and the total number of possible outcomes for the event E is m
So
EVALUATION
We see from above that for any event A
CHECKING FOR OPTION : a
Since 2 > 1
So 2 can not be probability of an event
CHECKING FOR OPTION : b
Since - 1 < 0
So - 1 can not be probability of an event
CHECKING FOR OPTION : c
So 0.3 can be probability of an event
CHECKING FOR OPTION : d
Since 1.12 > 1
So 1.12 can not be probability of an event
FINAL ANSWER
Hence the correct option is c. 0.3
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