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valentinak56 [21]
3 years ago
5

PLEASE HELP me ANSWER these!!! My grade depends on it!!

Mathematics
1 answer:
iren [92.7K]3 years ago
8 0
M (Mean) = 20,500;
SD (Standard Deviation) = 55
1 ) 20,555 = 20,500 + 55 = M + 1 SD
Answer: 50% + 34.1% = 84.1%
2 ) 20.610 = 20,000 + 110 = M + 2 SD
Answer: 10% - ( 50% + 34.1% + 13.6% ) = 100% - 97.7% = 2.3% 
3 ) 20,445 = 20,500 - 55 = M - 1 SD
Answer: 50% - 34.1% = 15.9% 
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Let's start with the smallest prime number 2

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