What is the median of the data?
What is the mode of the data?
What is the range of the data?

The median is the middle value of the given series

The mode is the number that is appears more than any other number given in the series

Range is the difference (value) between the biggest number and smallest number of the given series

Step-by-step explanation:

given series is 1,1,1,1,3,3,4,4,4,8,12

Median = 1,1,1,1,3 ,3,4, 4,4,8,12 (among the 11 numbers the 6th middle number is 3) so the median is 3

Mode  = 1,1,1,1 ( appear in 4 times), 3,3 (appear in 2 times) 4,4,4 (appear in 3 times) 8 and 12 appear only one time

so ,the mode is 1

Range = the value of (biggest number - smallest number)

               = (12-1)

        Range  = 11

Final answers

Median = 3

Mode    = 1

Range   = 11