kayeecheng2102p3s8sa kayeecheng2102p3s8sa
  • 15-02-2018
  • Mathematics
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how to do q44
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how to do q44thx class=

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sqdancefan
sqdancefan sqdancefan
  • 25-02-2018
1. B
Adding a constant offset to the data does not change its variance. Scaling it, or applying a non-linear function will change the variance.


2. A
For a given number on the 3rd die, the first two dice can match it 11 ways, or have two numbers that match in 5 additional ways. Thus probability of 2 or more numbers being the same is 6*16/216 = 4/9.
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