On a standardized exam, the scores are normally distributed with a mean of 190 and a standard deviation of 20. Find the z-score of a person who scored 155 on the exam.

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

25% is the answer

this "question" looks more like a project is there any other info you can give me about this. it could be too complex for someone else to do on this website