How you express four less than a the square of a number
2 answers:
The answer to your question is (x^ 2) - 4
Express 4 less than a number is actually easy. X will be our number. But it won't be just X, it would be X squared or x^2. So you do... (x^2)-4. (The 4 is what you subtract).
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Median is just the value that is neither the highest nor the lowest compared with the other values in the set
Mean is just the average of the numbers which is found out by adding up all the numbers then dividing the sum by the number of values in the set