2014 Top Albums (Based on U.S. sales) Of all of the U.S....

2014 Top Albums (Based on U.S. sales) Of all of the U.S. album sales 1989 (Taylor Swift) accounted for $25 \%$ of sales, Frozen (Various Artists) accounted for $24.1 \%$ of sales, In the Lonely Hour (Sam Smith) accounted for $8.2 \%$ of sales. What is the probability that a randomly selected album was something other than these three albums?

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Key Concepts

Percentage Calculations

Percentage calculations involve expressing a part of a whole as a fraction of 100. Using percentages allows for easy comparison and combination of parts, and they are essential for translating raw data into meaningful, comparable probabilities.

Probability

Probability measures how likely an event is to occur. It is represented as a number between 0 and 1 (or as a percentage), where 1 (or 100%) represents certainty. Understanding probability is crucial for quantifying risk and uncertainty in various contexts.

Complement Rule

The complement rule is a principle in probability that states the probability of an event not occurring is equal to 1 minus the probability of the event occurring. This rule is particularly useful when it is easier to calculate the likelihood of the event itself rather than its complement.

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