how do you calculate the mean, median, and standard deviatio…
Mean: Add all values in the dataset, then divide by the number of values.
Median: Arrange the values in order, then find the middle value (or average the two middle values if even count).
Standard deviation:
- Find the mean
- Subtract the mean from each value (get deviations)
- Square each deviation
- Find the average of those squares (variance)
- Take the square root of the variance
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