Mathematics for IGCSE & O level - Probability (Section 3 - No. 3)
In a survey of 200 people, 120 preferred coffee, 60 preferred tea, and 20 had no preference. What is the probability that a randomly selected person prefers coffee?
3/10
3/5
2/5
1/10
説明
120 coffee preferences out of 200 total respondents. 120/200 = 3/5