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  3. Rolling a number cube with faces numbered 1 to 6 (similar to a 6-sided die) is a

Rolling a number cube with faces numbered 1 to 6 (similar to a 6-sided die) is a

游客2025-02-27  35
问题 Rolling a number cube with faces numbered 1 to 6 (similar to a 6-sided die) is an experiment with 6 possible outcomes: 1, 2, 3, 4, 5 or 6. If we toss two number cubes simultaneously, what is the possible number of the sum of the two faces?
选项 A、8
B、9
C、10
D、11
E、12
答案 D
解析 number cube就是带号码的立方体，最大值当然是两个立方体都显示6，6+6=12，最小值为1+1=2；而且由于两个立方体的表面值是从1到6连续，那么两个表面值的和必然也是从最小值2到最大值12是连续的，所以共有12-2+1=11个值。正确答案为D。
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