415: Prevalence of the disease affects

 a) Sensitivity
 b) Specificity
 c) Predictive
 d)Pictogram


 Ans: C

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414: A normal distribution curve depends on

 a) Mean and sample size
 b) Range and sample size
 c) Mean and standard deviation
 d) Mean and median


 Ans: C[Ref.Soben peter 3ed ed pg 38]


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413: Standard deviation is a measure of:

 a) Correlation
 b) Statistical
 c) Central
 d) Variation

 Ans:D[Ref.Soben peter 3rd ed pg 36]


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