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Earn +20 ptsQ: How many variables are supposed to be in a science experiment?
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How many blocks will there be in her experiment?
A researcher wishes to design a fully blocked experiment with groups of subjects representing every possible combination of 1 explanatory variable (control vs. treatment) and 3 other variables (male vs. female, old vs. young, healthy vs. ill) for a total of 4 variables. 16
How many variables an 8-square eliminates?
3 variables
How many solutions does a linear inequality in two variables have?
Infinitely many.
How many digits in a grand?
How am i supposed to know!
How many solutions do absolute value equations have?
An equation with absolute values instead of simple variables has twice as many solutions as an otherwise identical equation with simple variables, because every absolute value has both a negative and a positive counterpart.
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