Mathematics for IGCSE & O level - Probability (Section 7 - No. 42)
A bag contains 4 red and 4 blue marbles. What is the probability of drawing a blue marble?
1/8
1/4
1/2
3/4
คำอธิบาย
There are 4 blue marbles out of 8 total marbles, resulting in a probability of 4/8 which simplifies to 1/2.