find the mean median mode, round to the neaerest tenth. 60,70,75,78,80,80,83,85,87,90.90,90 ,90,93,95,95,98,100.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest

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.