11.1 Probability of independent events
Probability of independent events
Probability is everywhere in our daily life. Do you know your chances of winning a specific prize in a spinning wheel prize draw? How about the odd to get the same prize two times in a row? By applying the concept of probability of independent events, we can easily answer these questions.
Basic concepts:
 Determining probabilities using tree diagrams and tables
Related concepts:
 Influencing factors in data collection
 Data collection
 Basic probability
Lessons

2.
A spinner divided in 4 equal sections is spun. Each section of the spinner is labeled 1, 2, 3, and 4. A marble is also drawn from a bag containing 5 marbles: one green, one red, one blue, one black, and one white. Find the probability of:

3.
A coin is flipped, a standard sixsided die is rolled; and a spinner with 4 equal sections in different colours is spun (red, green, blue, yellow). What is the probability of:

4.
A toy vending machine sells 5 types of toys including dolls, cars, bouncy balls, stickers, and trains. The vending machine has the same number of each type of toys, and sells the toys randomly. Don uses a fiveregion spinner to simulate the situation. The results are shown in the tall chart below:
Doll
Car
Bouncy Ball
Sticker
Train




