Facebook	Instagram
280	140
270	150
190	230
130	120
180	180
250	230
270	250
260	120
120	270
230	200
260	280
70	280
210	270
110	210
230	170
220	220
180	110
220	190
160	210
90	290
250	110
260	190
220	110
140	210
180	250
260	190
90	260
190	110
270	170
200	270
80	190
120	200
80	190
210	220
80	140
90	110
220	150
180	200
250	100
270	110
180	240
160	190
110	170
260	90
240	180
160	90
220	140
200	180
110	200
100	270

	Facebook	Instagram
Mean	186.20	187
Median	195	190
Modes	180, 220 and 260	110 and 190

The typical average time spent for Instagram is slightly higher than Facebook by only 0.80 unit (187 - 186.20). The median time spent for Instagram is also higher than Facebook with 195 unit against 190 unit. There were three times the time spent for Instagram are most the same and while there twice time spent for Facebook are most the same.

Question:

By using appropriate measures of dispersion (variance, standard deviation, coefficient of variation), compute and interpret the variability of average time spent for both social media platforms.