Question

1-The answer is true or false

a-Random errors arise from both measurement errors and sampling variation.

True        False

b-Sampling variability stems from inaccuracies in assessing the exposure and disease occurrence.

True         False

c-Just like bias and confounding, random errors are considered systematic errors.

True     False

d- In addition to the p-value, the confidence interval is another method for estimating the amount of random error in epidemiological studies.

True     False

Answer 1

(a). True

(b). False

(c). False

(d). True