Examlex
Explain how a geographers approach to the study of organisms differs from a biologists study of organisms.
Normal Curve
A bell-shaped curve that represents the distribution of a set of data where most occurrences take place around the mean, tapering off symmetrically towards the extremes.
T-statistic
A type of statistic used in hypothesis testing when the sample size is small and the population variance is unknown, it is based on the Student's t-distribution.
Z-score
A statistic that tells you how many standard deviations a given value is from the mean.
Sample Mean
The average value of a sample set, calculated by summing all observations and dividing by the number of observations.
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