Question

calculate the probability of picking a tile at random from the ones showing below and getting a number 8 ≤ n ≤ 10 a) 3/10 b) 3/12 c) 2/10 d) 2/12

Explanation:

Step1: Count total tiles

There are 12 tiles in total.

Step2: Count favorable tiles

The numbers 8, 9, 10 satisfy $8\leq n\leq10$. There are 3 such tiles.

Step3: Calculate probability

Probability = $\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}=\frac{3}{12}$

Answer:

B. 3/12