# Use the magnitudes​ (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the​ range, variance, and standard deviation. If another​ value, 8.00, is added to those listed in the data​ set, do the measures of variation change much? 3.272.452.542.432.752.372.192.421.911.432.851.731.992.322.332.704.742.873.382.722.833.423.952.993.873.473.082.942.703.602.842.373.033.232.593.643.242.662.352.432.813.952.522.922.983.412.272.562.933.162.201.151.934.002.542.832.352.311.522.801.951.602.452.332.081.553.201.491.812.551.662.352.452.082.192.752.002.792.392.671.692.881.841.991.862.561.972.183.671.553.162.461.881.502.793.283.822.752.452.712.541.642.183.032.361.481.922.322.651.411.391.802.242.302.481.732.402.442.482.44

Question

Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the range, variance, and standard deviation. If another value, 8.00, is added to those listed in the data set, do the measures of variation change much?

3.27
2.45
2.54
2.43
2.75
2.37
2.19
2.42
1.91
1.43
2.85
1.73
1.99
2.32
2.33
2.70
4.74
2.87
3.38
2.72
2.83
3.42
3.95
2.99
3.87
3.47
3.08
2.94
2.70
3.60
2.84
2.37
3.03
3.23
2.59
3.64
3.24
2.66
2.35
2.43
2.81
3.95
2.52
2.92
2.98
3.41
2.27
2.56
2.93
3.16
2.20
1.15
1.93
4.00
2.54
2.83
2.35
2.31
1.52
2.80
1.95
1.60
2.45
2.33
2.08
1.55
3.20
1.49
1.81
2.55
1.66
2.35
2.45
2.08
2.19
2.75
2.00
2.79
2.39
2.67
1.69
2.88
1.84
1.99
1.86
2.56
1.97
2.18
3.67
1.55
3.16
2.46
1.88
1.50
2.79
3.28
3.82
2.75
2.45
2.71
2.54
1.64
2.18
3.03
2.36
1.48
1.92
2.32
2.65
1.41
1.39
1.80
2.24
2.30
2.48
1.73
2.40
2.44
2.48
2.44