Step-by-step explanation:
P(A) odd number= 1,3,5,7 or 4 numbers out of 8 or 4/8
P(B) Numbers less than 3 = 1 and 2. or 2 numbers out of 8 pr 2/8
P(A and B) numbers you can see in A and B = 1 , 1 number out of 8 pr 1/8
formula:
P(AorB) = P(A)+P(B)-P(A and B)
= 4/8 + 2/8 - 1/8
= 6/8 - 1/8
= 5/8
why do we need to subtract it from P(A and B)?
Since we have only one 1 from the numbers from 1 to 8 and we can't count it double.
