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Social & Preventive Medicine Biostatistics 04e781bf

Area under normal curve within +- 1SD (standard detion)-

A
0.68
B
0.17
C
0.12
D
0.34
High-Yield Explanation
Ref:Parks 23rd edition pg 849. +/-1sd includes 68% i.e . 0.68 1SD : confidence limit = 68% 2SD : confidence limit = 95% 3SD : confidence limit = 99.7%

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