Question 1110168
Let's define first.
Prime: Only factors are 1 and the number itself.
Composite: Not a prime number (also not 1).
The number one is neither prime nor composite.
Although you didn't mention, I'm assuming each of the numbers has an equal area so that the probabilities are identical for 1-8.
{{{P(Even)=P(2)+P(4)+P(8)=1/8+1/8+1/8=3/8}}}
{{{P(Prime)=P(2)+P(3)+P(5)+P(7)=4(1/8)=1/2}}}
{{{P(Factor_of_12)=P(1)+P(2)+P(3)+P(4)+P(6)=5(1/8)=5/8}}}
{{{P(Composite)=1-P(1)-P(Prime)=1-1/8-4/8=3/8}}}
{{{P(N>10)=0}}}
{{{P(1)=1/8}}}