The Pearson chi-square test will tell you how well a given set of observations fit some hypothesised distribution. That is, you have some idea as to what the distribution should be and the test will show how closely (or not) the observations agree with that.
Another use is to test the independence betwen two (or more) matched observation on a set of subjects.
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It tells you that something has a value of -13644.
-14.7
The original equation, ax2 + bx + c = 0 has two equal roots whose value is -b/2a.
1 US cent has the same value the world over! i.e. 1 US cent
The value of the set is dependent on condition. However, the proof set value is between $50 and $70 US.