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R= {3,4,7,9}T= {2,5,8}If a number r is to be chosen from set R and a number t
R= {3,4,7,9}T= {2,5,8}If a number r is to be chosen from set R and a number t
游客
2025-02-23
34
管理
问题
R= {3,4,7,9}
T= {2,5,8}
If a number r is to be chosen from set R and a number t is to be chosen from set T, what is the ranges of all possible values of t/r
选项
A、2/9
B、13/9
C、22/9
D、11/3
E、14/3
答案
C
解析
极差中只需找出最大值和最小值。最大值:分子最大,分母最小,为8/3。最小值:分子最小,分母最大,为2/9。其差为22/9,故答案为C。
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