Examlex
Use the _______ attribute on a video element to display an image that represents the movie.
Independent Populations
Populations that have no interaction or relationship with each other, allowing for comparisons without interference.
Means
The average of a set of numbers, calculated by dividing the sum of all the values by the count of the values.
Equal-variances Test
A statistical test used to check if two populations have equal variances.
Student T-distributed
The Student's t-distribution is a probability distribution that is symmetric and bell-shaped, used especially in small sample sizes for estimating population parameters.
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