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When determining the sample size, the standard deviation may not be known. Which of the following was not mentioned in your text as a way to estimate the standard deviation?
Mobile-first Approach
A design strategy that prioritizes the optimization of websites and applications for mobile devices before making adaptations for desktop or larger screens.
Optimum Viewing
The best or most favorable conditions for seeing or observing something.
Smartphones and Tablets
Portable electronic devices with touchscreens used for a variety of tasks, including communication, internet browsing, and media consumption.
Mobile Communication Technology
Technologies that enable communication and data exchange through mobile devices such as smartphones and tablets.
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