A probability problem by Krishna Chaitanya Velaga

Probability Level 1

What is the probability of getting an even number when a fair die is thrown once?

Hint: A fair die has 6 faces.

0.125 0.25 0.5 0.75

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Krishna Chaitanya Velaga by Krishna Chaitanya Velaga , 23, India

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3 solutions

Even= 3 (2, 4, 6) Odd = 3 (1, 3, 5) Sample Space = 6 P(even) = 3/6 = 0.5

5 Helpful 0 Interesting 0 Brilliant 0 Confused

Numbers on die are 1,2,3,4,5,6 Even numbers 2,4,6 Total Outcomes=6 Favorable Outcomes=3 Probability =3/6=1/2=05

1 Helpful 1 Interesting 1 Brilliant 0 Confused

Sample Space of a fair die is = S = {1,2,3,4,5,6} We are interested to find a probability of even number that we are getting = P(E) Let E represent the even number , According to sample space 2 , 4 and 6 are even number . Let put them all together in an event E={ 2, 4, 6 } P(E) = ( n(E) ) /( n(S) ) = 3/6 =1/2 = 0.5

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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