GRE Problem Solving Question 261
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Source: 150math
Each of the following linear equations defines y as a function of x for all integers x from 1 to 100. For which of the following equations is the standard deviation of the y-values corresponding to all the x-values the greatest?
- A
- B
- C y = x
- D y = 2*x + 50
- E y = 3*x – 20