/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 34 A wireless garage door opener ha... [FREE SOLUTION] | 91Ó°ÊÓ

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A wireless garage door opener has a code determined by the up or down setting of 12 switches. How many outcomes are in the sample space of possible codes?

Short Answer

Expert verified
There are 4096 possible codes.

Step by step solution

01

Understanding the Problem

We need to figure out how many different codes can be set using 12 binary switches, where each switch can be either 'up' or 'down'.
02

Determine Switch Outcomes

Each switch has 2 possible settings: 'up' or 'down'. Therefore, for each switch there are 2 possible outcomes.
03

Calculate Total Combinations

Since there are 12 switches, to find the total number of combinations, we use the formula for combinations with replacement: \(2^{12}\).
04

Compute the Result

Calculate \(2^{12}\) to find the total number of possible codes. \(2^{12} = 4096\).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Sample Space
In probability theory, the term "sample space" refers to the set of all possible outcomes of a particular experiment or scenario. It's like listing every possible result that can occur from an action. In our original exercise, the action is setting the garage door opener's code, which involves flipping 12 binary switches.

Each switch has two states, either 'up' or 'down'. Considering 12 such switches means every combination of these settings forms part of the sample space. When you list all possible combinations, you get a total number of 4096 outcomes (as calculated by using the formula for combinations with replacement: \(2^{12}\)).

Understanding sample space is crucial since it helps determine how many outcomes are possible in probabilistic scenarios. It's a fundamental aspect when delving into probability calculations and helps in visualizing and solving complex problems.
Binary Outcomes
Binary outcomes are a concept where each option or decision point offers only two possibilities. In the original exercise, the switches that control the garage door opener are binary, meaning they can only be in one of two states: 'up' or 'down'. This fact simplifies the problem because each switch is independent of the others and contributes to calculating possible configurations.

When dealing with binary outcomes, visualization and calculation become easier. This is because each point of decision effectively doubles the total number of outcomes. The phenomenon is applicable to many real-world scenarios and underpins the logic of making decisions with limited options, such as flipping a coin or answering a true-or-false question.

Recognizing something as binary helps in predicting and mapping out all potential cases in practical situations. It also allows us to apply mathematical tools such as exponentiation to find total outcomes efficiently, as seen in the calculation \(2^{12} = 4096\).
Combinatorial Analysis
Combinatorial analysis involves the study of how different combinations can be formed from a set of items, with a focus on counting and arranging the possibilities. It acts as the backbone of solving problems where it's necessary to find out the number of ways an event can occur.

In the exercise, combinatorial analysis is utilized to calculate the total number of possible codes of the garage door opener by arranging the settings of the 12 binary switches. The method involves using a basic counting principle: if each switch has 2 positions and there are 12 switches, the total number of combinations is an example of combinations with replacement computation. Thus, the formula \(2^{12}\) calculates that there are 4096 potential configurations.

Combinatorial analysis goes beyond this simple exercise. It provides valuable insights into complex scenarios across fields like computer science, logistics, and game theory. Understanding combinatorial concepts equips students with the mathematical tools necessary for tackling a multitude of counting problems.

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Most popular questions from this chapter

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