I mean if you chose Alpha, you're swinging from A to B-; and from Beta, swinging from B+ to C.
要是你选α,你的分数会在A到B-,选β,分数范围会在B+到C
Because the B+ or A- people, B- you know it, they'll hire B's and B minuses.
原本想要B+或者A-的人,实际能力评分只有B或者。
So the easy ones are on the diagonal: you both get B- if we both choose Alpha; we both get B+ if we both choose Beta.
这样就更直观了,如果我们都选α的话得B-,如果我们都选β的话得B+
B + A would be--First draw B and from there you draw A.
+ A 就是先画矢量 B,然后再画矢量 A
Now, we are done because now we can ask how high does it go, and you go back to your y of 1 is 15+10-5, which is what?
现在问题解决了,因为我们可以算出,最高点的高度,你回到这个式子,求出y=15+10-5,是多少
Just as forewarning for people who have forgotten what a median is, that means half of you--not approximately half, it means exactly half of you-- will be getting something like B+ and below and half will get something like B+ and above.
稍微提示下忘记中位数含义的同学,这也就是说,不是一半左右,是绝对一半的同学,会得到B+的成绩或更低的成绩,另一半会到B+的成绩或更高的成绩
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