To start it off, 2 x 39= 78 So a is correct that would be 2 x 30+9 = 2x39= 78 So b is correct as well. 2 x 40-1= 2 x 39= 78 c is questionable 2 x 30 +9= 60 + 9 = 69 So d is correct 18 + 60 = 78 So e is correct 100-22 = 78
value that "lies outside" (is much smaller or larger than) most of the other values in a set of data . Each if the numbers would be an outlier applying to the rule / function.
