A spinner numbered 1 to 8 is spun. What is the probability of spinning:
1. an odd number? a.1/8 b.4/8 or 1/2 c.3/8 d.5/8 2. a factor of 9? a.1/8 b.2/8 c.3/8 d.4/8 3. a multiple of 2? a.2/8 b.3/8 c.4/8 or 1/2 d.5/8 4. a composite number? a.3/8 b.4/8 c.5/8 d.6/8