Examlex
Find the sum of the first 10 terms of the arithmetic sequence 88, 159, 230, . . . .
Slope
The rate at which a dependent variable changes with respect to an independent variable in a linear relation.
API Gravity Degrees
An oil industry standard that compares the density of petroleum liquids to that of water, determining whether they are heavier or lighter.
Outliers
Observations in data that do not follow the pattern of the majority, significantly differing from other observations.
Covariances
Covariances are measures that indicate the extent to which two random variables change in tandem. A positive covariance indicates that two variables tend to move in the same direction.
Q17: Twice the sum of a number and
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Q140: Find the 9 th term of
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Q240: Find term 25 of the arithmetic