麻烦大家帮我解答一下这道GRE数学题
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麻烦大家帮我解答一下这道GRE数学题
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) y=x/3 B)y=x/2+40 C) y=x D) y=2x+50 E) y=3x-20
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) y=x/3 B)y=x/2+40 C) y=x D) y=2x+50 E) y=3x-20
![麻烦大家帮我解答一下这道GRE数学题](/uploads/image/z/16178933-29-3.jpg?t=%E9%BA%BB%E7%83%A6%E5%A4%A7%E5%AE%B6%E5%B8%AE%E6%88%91%E8%A7%A3%E7%AD%94%E4%B8%80%E4%B8%8B%E8%BF%99%E9%81%93GRE%E6%95%B0%E5%AD%A6%E9%A2%98)
读题不懂还是不会做啊?题目简单,别告诉我们要考GRE,这题目还读不懂!
再问: 题读明白了,我做错了,解析没看明白
再问: 题读明白了,我做错了,解析没看明白