1.) A group of students took a Final Exam. Their scores are as follow 18, 10, 12, 8, 16, 18, 20, 6, 16, 12, 15, 7.
(Round your answers to one decimal place). Gl6
a.) Find the Average:
b.) Find the Standard Deviation:
c.) Create the Normal Distribution Graph.

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Acircle has a circumference of 28.36 units what is the diameter of the circle

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?