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Social & Preventive Medicine Normal Distribution, Skewed Distributions fbd122bf

68% values are covered in how many Standard Detions (SD)?

A
1 SD
B
2 SD
C
3 SD
D
4 SD
High-Yield Explanation
Normal / Gaussian curve:- Is 'bilaterally symmetrical, bell - shaped'. Mean, Median and Mode coincide. (Mean = Median = Mode) Has mean (u) = 0 and SD (s) = 1. 1) Mean +- 1SD (u +- 1s) covers 68% values. 2) Mean +- 2SD (u +- 2s) covers 95% values. 3) Mean +- 3SD (u +- 2s) covers 99% values.

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