D. orthocenter geometry math question

P is the circumcenter, the center of the circumcircle, which is the circle that circumscribes the triangle, which means the circle through the triangle's three vertices.

Choice C

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.