<span>Statistical sampling:
Uses laws of probability for selection and evaluation of a sample.
Allows for quantification of audit risk and sufficiency of audit evidence.
Nonstatistical sampling:
Does not utilize statistical models in calcualtions.
Uses a non-mathematical approach to determine sample sizes and evaluate the selected samples.</span>
Sense the two triangles are congruent you would use CPCTC.
angle BCA would be 60, so 50 + 60 = 110, so angle CAB would be 70
