s will calculate the standard deviation (a measure of the dispersion around the mean of the X and Y values) for both X and Y values.
x button sequence calculates the mean of the X and Y values. The product of the average (mean) of the X value is shown on the display screen after touching r 
V12 specifications
The Victor Technology V12 is a sophisticated and versatile electronic calculator designed for both personal and professional use. With its user-friendly interface and advanced functionality, it has become a popular choice among students, educators, and business professionals alike.One of the standout features of the V12 is its large, backlit display, which provides clear visibility in various lighting conditions. This makes it easier for users to read numbers and calculations without straining their eyes. The calculator’s ergonomic design ensures comfortable handling, while its robust construction promises durability and longevity.
The V12 supports a wide range of mathematical operations, including basic arithmetic functions, advanced calculations like square roots and percentages, and trigonometric functions. This versatility makes it suitable for both everyday calculations and more complex mathematical tasks, catering to a diverse audience.
Incorporating cutting-edge technology, the Victor Technology V12 boasts a solar-powered option, which enhances its sustainability and reduces the need for battery replacements. For situations where solar power is insufficient, it also features a backup battery, ensuring uninterrupted usage in all environments.
Another key characteristic of the V12 is its programmable memory function. Users can store frequently used calculations or data, facilitating quicker access and minimizing repetitive input. This feature proves particularly useful for professionals who deal with extensive numerical data and require efficiency in their calculations.
The V12 also includes a spell-check dictionary and error-checking capabilities, making it easier to avoid mistakes during calculations. With its responsive keys and tactile feedback, users can input data swiftly and accurately, further boosting productivity.
In summary, the Victor Technology V12 stands out due to its combination of advanced functionality, ease of use, and reliable performance. With features tailored for a wide range of users, it successfully meets the demands of both casual calculators and those who require more sophisticated computational capabilities. Its thoughtful design, reliability, and innovative technology make it a valuable tool in today's fast-paced world of mathematics and finance. Whether in a classroom, an office, or at home, the V12 proves to be an essential companion for tackling everyday numerical challenges.