b) From table 6 in a column 2 and row 3, x is equal to
109.95. In column 6 and row 3, AvgRTT is equal to 104.31.
From (3), Theavy = 104.31 + (104.31 × 0.1) = 114.74. From
(4), Tlow = 104.31 - (104.31 × 0.1) = 98.96. From (5),
109.95 > 104.31 that is classified as the high traffic volume.