Choose the correct equation for the following graph.

Which choice represents the sample space ,s for this event

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.