In this article explain the statistics topic probability. Her we find or calculate the probability If a die is rolled one time then of getting a 4, of getting Less than 7, of getting greater than 3 or an odd number, of getting greater than 3 and an odd number .
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Question :-
If a die is rolled one time, find these probabilities
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- of getting a 4
- of getting Less than 7
- of getting greater than 3 or an odd number
- of getting greater than 3 and an odd number
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Sample space of a Dice Roll
n(S) = 6
S = {1, 2, 3, 4, 5, 6}
of getting a 4
Let A represent the event that of getting a 4.
A = 4
n (A) = 1
P(A) = n(A)/n(S) = 51/ 6
of getting Less than 7
Let B represent the event that of getting Less than 7.
B = 1, 2, 3, 4, 5, 6
n (B) = 6
P(B) = n(B)/n(S) = 6 / 6 =1
of getting greater than 3 or an odd number
Let C represent the event that of getting greater than 3 or an odd number.
C = {4, 5, 6, 1, 3} , n (C) = 5
P(C) = n(C)/n(S) = 5 / 6
of getting greater than 3 and an odd number
Let D represent the event that of getting greater than 3 and an odd number.
D = { 4, 5, 6, 1, 3 } n (D) = 5
P(D) = n(D)/n(S) = 5 / 6