Question

18 bikes, 9 have gears (G), 11 have suspension (S) and 5 with both,What is the probability that a bike with suspension or gears? Make a two-way table to help you!​

Answer 1

Answer:

• 5/9

Step-by-step explanation:

• Total number of bikes = 18
• Bikes with gears S = 9
• Bikes with suspension S = 11
• Bikes with both GS = 5

From the information above we have:

• Bikes with gears only = 9 - 5 = 4
• Bikes with suspension only = 11 - 5 = 6

Sum of the above two gives us the number of bikes with suspension or gears:

• 4 + 6 = 10

Probability of selected bike be G or S is:

• P(G or S) = 10/18 = 5/9