Geometric Probability and Venn Diagrams

If a stone is dropped at random on the arrangement of tiles shown, what is the probability the stone lands on a black tile?

• 5/9

• 4/9

• 1/2

• 1/9

Find the geometric probability of a marble falling on the shaded region of the figure. 

• 15.3%

• 24.5%

• 26.9%

• 21.5%

Find the probability that a randomly chosen point in the figure lies in the shaded region.

• 94.8%

• 80%

• 60%

• 45.6%

Find the probability that a point chosen at random on the segment satisfies the inequality : x ≤ 5

• 40%

• 50%

• 30%

• 60%

What proportion of senior boys play football or wrestle?

• 9/143

• 12/143

• 18/143

• 39/143

How many senior boys play football but do not wrestle?

• 9

• 12

• 18

• 104

How many senior boys play neither sport?

• 9

• 104

• 30

• 39