Answer :

Range is the largest number minus the smallest.

210 - 68 = 142

142 is the range.
Range=Maximum number - Minimum number. [tex] \\ 68,88,113,156,113,210,145, \\ [/tex] [tex] \\ Maximum \ number=210 \\ [/tex] [tex] \\ Minimum \ number=68 \\ [/tex] [tex] \\ Subtract:210-68=142 \\ [/tex] The range of the data set is 142.