Sample Mean Calculator
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Understanding the Sample Mean
The sample mean is a measure of the central tendency of a data set. It is calculated by adding up all data points and dividing by the number of points. This is often used in statistics to estimate the average of a population.
Formula: \( \text{Sample Mean} = \frac{\sum_{i=1}^n x_i}{n} \)
Real-Life Example
Suppose you have the following scores for five students in a quiz: 80, 85, 90, 75, and 88. To find the average score, or sample mean, you would add all the scores together and divide by the number of students.
Calculation: \( \frac{80 + 85 + 90 + 75 + 88}{5} = 83.6 \)
Thus, the average score for the quiz is 83.6.
Suf is a senior advisor in data science with deep expertise in Natural Language Processing, Complex Networks, and Anomaly Detection. Formerly a postdoctoral research fellow, he applied advanced physics techniques to tackle real-world, data-heavy industry challenges. Before that, he was a particle physicist at the ATLAS Experiment of the Large Hadron Collider. Now, he’s focused on bringing more fun and curiosity to the world of science and research online.