Key Probability Concepts, Venn and Tree Diagrams, and Applications in Dependent and Independent Events

Overview

This assignment covers fundamental probability concepts including experiments, sample spaces, events, and the distinction between mutually exclusive and independent events. The paper demonstrates practical applications through Venn diagrams, tree diagrams, and probability calculations with and without replacement, illustrating how different sampling methods affect outcome probabilities.

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Assignment Activity Unit 3

Donald Ngonyo

University of the People

MATH 1280 - Introduction to Statistics

Nikhil Choksi

April 30, 2026

Assignment Activity Unit 3

Question 1: Key Probability Concepts

An experiment refers to any process that produces outcomes. In this context, rolling a die or flipping a coin represents an experiment. The sample space is the set of all possible outcomes. For example, a six-sided die has a sample space of {1, 2, 3, 4, 5, 6}, while a coin has {Heads, Tails}.

An outcome is a single result from an experiment, such as rolling a 3. An event is a subset of outcomes; for instance, getting an even number (2, 4, 6) when rolling a die.

Probability measures the likelihood of an event occurring and is calculated as the number of favorable outcomes divided by the total number of possible outcomes (Illowsky et al., 2023).

Mutually exclusive events are events that cannot occur simultaneously. For example, rolling an even number and an odd number at the same time is impossible.

Independent events occur when the outcome of one event does not influence another. For instance, flipping a coin and rolling a die are independent because one does not affect the other.