A survey related to professor effectiveness was administered to students who chose the professor as the chair of their doctoral committee. The results
of the survey showed 100% effectiveness. Another survey was administered
to all students taking courses under the professor. The results of this survey
showed 70% effectiveness. This is a classic example of an error in which
phase of inferential statistics?
A. data gathering
B. data organization
c. data analysis
D. probability-based inference

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

hi,

the area of abcd is 245.

3*24=230

4*94=1039

2*12=24

add all of them up, you get 2450