\( \begin{array}{|c|c|c|c|} \hline &\text{swimmer} &\text{non-swimmer} &\text{total} \\ \hline \text{Boys} & 11 & 10 & \\ \hline \text{Girls} & 13 & 16 & \\ \hline \text{total} & & \\ \hline \end{array} \) Question 1 (a) How many boys are in the class? \( \require{AMSsymbols} \begin{array}{|c|c|c|c|} \hline &\text{swimmer} &\text{non-swimmer} &\text{total} \\ \hline \text{Boys} & \bbox[yellow,3px]{11} & […]

# Tag Archives: Probability

# Probability with Venn Diagrams – Ultimate Guide

Visualising multiple events using Venn diagrams to find probabilities is done quite often. Representing Data in Venn Diagrams There are 9 types of Venn diagrams for holding two events when they overlap each other. Let’s assume there are two elective subjects, Arts and Biology, in a certain school. \( P(A) \) The probability that a […]

# Probability of Complementary Events: without Replacement

# Probability of Complementary Events: Ratios

# Probability of Complementary Events: At Least

# Probability without Replacement and Order of Events

# Probability without Replacement with AND OR

# Product Rule and Independent Events

# Product Rule of Probability: Probability Regarding AND

Transcript They give you the probability of a, b, c, and d in the question. Part a! They want us to find the probability of a and b. The probability of a and b is simply a probability of times the probability of b which becomes 1 on 24. And that’s it, guys. That’s pretty […]

# Addition Rule and Mutually Exclusive Events

Transcript Okay, if a and b are mutually exclusive, they give you the probability of a and b. They want us to find the probability of a or b. Now, the key thing here is mutually exclusive. What does mutually exclusive mean? Mutually exclusive means the probability of a and b is zero, which means […]