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Ascertainment Bias
A possible form of the bias, mainly in retrospective studies, which arises from a relationship amongst the exposure to the risk factor and the probability of detecting the event of interest. In a study comparing women by means of cervical cancer and a control group, for instance, an excess of oral contraceptive use among the cases might possibly be due to more regular screening for disease prevailing among the women are known to be taking the pill.
what is the relationship between the variance and the standard deviation?
How to calculate closing stock in Tally while we are posting with inventory.
a fair die is thrown 3 times. Let X1,X2,X3 denote the results of 3 throws. What is the probablity that p[X1>X2+X3]
what is spss explain in breif
What is the difference between parametric and non-parametric stats tests? What is the difference between parametric and non-parametric stats tests? Different kinds or levels of d
We have two applicants who are applying for a job. They both took the high school exit exam, but different ones. Shannon took the ACT and scored 26, Frank took the SAT scored 1350.
Your earlier comparison of three energy technologies showed only a borderline effect using the non-parametric Kruskal-Wallis statistic. This result left you hanging on a decision o
Impulse and Momentum Theorem Impulse is known as the change in momentum of any object: j = Δ p Momentum is a product of the mass & the velocity of an object, and is a v
Budgetary control The manage or management of a governmental component in agreement with an approved budget for the purpose of keeping expenditures within the limits of available
There are 49 mice in a pet shop. 30 mice are white. 27 mice are male. 18 mice have short tails. 8 mice are white and have short tails. 11 mice are male and have short tails.
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