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three values used to divide a set of data into four groups of equal size; the second quartile is the median of the data.
events that cannot happen at the same time, for example, you cannot roll a 5 and 3 at the same...
the limit of the average gradient as the change in x tends towards zero.
numbers or expressions separated by plus or minus mathematical operators.
a quadratic expression or equation using one or more of the symbols <, >, ≤, or ≥.
a part of the quadratic formula that gives us information about the roots or solutions of the...