- #1
alijan kk
- 130
- 5
Homework Statement
If a coin flipped and one die is thrown, what is the probability of getting a head or a 4 ?
Homework Equations
The Attempt at a Solution
Sample Space={ H,1 H,2 H,3 H,4 H,5 H,6 T,1 T,2 T,3 T,4 T,5 T,6 }
Event={ H,1 H,2 H,3 H,5 H,6 T,4 }
probability is 6/12
if i don't do it with the formula P(A)+P(B)-P(AintersectionB)
i know the probability is 7/12
but what does probability of " a head or a 4" really mean ? should i add H,4 in the set of event but why it is necessary if yes