Data with Data Repeat:
[[21.9 23.6]
 [31.5 32.5]
 [35.5 35. ]
 [34.6 35. ]]
Mean: [22.75 32.   35.25 34.8 ]
Std Deviation: [0.85 0.5  0.25 0.2 ]

Data without Data Repeat:
[[21.9 23.6]
 [23.3 28. ]
 [24.  30.1]
 [26.8 30.8]]
Mean: [22.75 25.65 27.05 28.8 ]
Std Deviation: [0.85 2.35 3.05 2.  ]