Question: What was Boston Scientific's Downside Deviation during the period December 11, 2019 to July 26, 2020? (Default target return is 0; not annualized) Using unadjusted prices, write down the indicator formula, collect the raw data, calculate the answer, and keep four decimal places. Please list the raw data and key calculation process.
Formula: DD = \sqrt{1 / N * \sum_{t=1}^{N} min(r_t - rf, 0)^2}
Data:
date,close
2019-12-10,44.0099983215332
2019-12-11,43.81999969482422
2019-12-12,44.66999816894531
2019-12-13,45.09000015258789
2019-12-16,45.20000076293945
2019-12-17,44.75
2019-12-18,44.7400016784668
2019-12-19,44.83000183105469
2019-12-20,45.369998931884766
2019-12-23,45.220001220703125
2019-12-24,45.310001373291016
2019-12-26,45.2599983215332
2019-12-27,45.220001220703125
2019-12-30,44.9900016784668
2019-12-31,45.220001220703125
2020-01-02,45.33000183105469
2020-01-03,44.97999954223633
2020-01-06,45.34999847412109
2020-01-07,45.400001525878906
2020-01-08,45.63999938964844
2020-01-09,45.709999084472656
2020-01-10,45.66999816894531
2020-01-13,45.470001220703125
2020-01-14,42.65999984741211
2020-01-15,42.56999969482422
2020-01-16,43.20000076293945
2020-01-17,44.27999877929688
2020-01-21,44.06999969482422
2020-01-22,44.04999923706055
2020-01-23,43.56999969482422
2020-01-24,43.209999084472656
2020-01-27,42.650001525878906
2020-01-28,43.45000076293945
2020-01-29,43.95000076293945
2020-01-30,43.40999984741211
2020-01-31,41.869998931884766
2020-02-03,42.22999954223633
2020-02-04,42.880001068115234
2020-02-05,42.619998931884766
2020-02-06,43.0099983215332
2020-02-07,42.18999862670898
2020-02-10,42.220001220703125
2020-02-11,42.56999969482422
2020-02-12,42.22999954223633
2020-02-13,42.18000030517578
2020-02-14,42.310001373291016
2020-02-18,42.15999984741211
2020-02-19,43.02000045776367
2020-02-20,42.5
2020-02-21,42.619998931884766
2020-02-24,41.08000183105469
2020-02-25,39.90999984741211
2020-02-26,39.38999938964844
2020-02-27,37.91999816894531
2020-02-28,37.38999938964844
2020-03-02,38.27000045776367
2020-03-03,37.22999954223633
2020-03-04,38.75
2020-03-05,37.459999084472656
2020-03-06,37.59999847412109
2020-03-09,34.09000015258789
2020-03-10,35.18000030517578
2020-03-11,33.86000061035156
2020-03-12,31.0
2020-03-13,32.33000183105469
2020-03-16,27.549999237060547
2020-03-17,28.790000915527344
2020-03-18,27.239999771118164
2020-03-19,28.270000457763672
2020-03-20,27.239999771118164
2020-03-23,25.82999992370605
2020-03-24,28.21999931335449
2020-03-25,29.920000076293945
2020-03-26,31.420000076293945
2020-03-27,30.61000061035156
2020-03-30,31.63999938964844
2020-03-31,32.630001068115234
2020-04-01,30.190000534057617
2020-04-02,31.049999237060547
2020-04-03,31.170000076293945
2020-04-06,32.880001068115234
2020-04-07,33.689998626708984
2020-04-08,35.130001068115234
2020-04-09,36.83000183105469
2020-04-13,35.209999084472656
2020-04-14,35.91999816894531
2020-04-15,34.790000915527344
2020-04-16,35.45000076293945
2020-04-17,38.290000915527344
2020-04-20,37.25
2020-04-21,35.04999923706055
2020-04-22,35.4900016784668
2020-04-23,36.400001525878906
2020-04-24,36.900001525878906
2020-04-27,37.0
2020-04-28,35.93000030517578
2020-04-29,37.43000030517578
2020-04-30,37.47999954223633
2020-05-01,35.9900016784668
2020-05-04,35.83000183105469
2020-05-05,36.810001373291016
2020-05-06,35.88999938964844
2020-05-07,37.0
2020-05-08,38.18000030517578
2020-05-11,37.77999877929688
2020-05-12,36.97999954223633
2020-05-13,35.77000045776367
2020-05-14,35.5
2020-05-15,34.83000183105469
2020-05-18,36.41999816894531
2020-05-19,35.43000030517578
2020-05-20,37.18000030517578
2020-05-21,34.790000915527344
2020-05-22,35.90999984741211
2020-05-26,36.18999862670898
2020-05-27,37.13999938964844
2020-05-28,37.470001220703125
2020-05-29,37.9900016784668
2020-06-01,37.5
2020-06-02,37.540000915527344
2020-06-03,37.90999984741211
2020-06-04,37.41999816894531
2020-06-05,38.83000183105469
2020-06-08,39.11000061035156
2020-06-09,38.2599983215332
2020-06-10,37.4900016784668
2020-06-11,35.04999923706055
2020-06-12,35.349998474121094
2020-06-15,35.869998931884766
2020-06-16,36.70000076293945
2020-06-17,36.88999938964844
2020-06-18,36.68000030517578
2020-06-19,36.59000015258789
2020-06-22,35.970001220703125
2020-06-23,36.25
2020-06-24,33.849998474121094
2020-06-25,33.88999938964844
2020-06-26,33.279998779296875
2020-06-29,34.650001525878906
2020-06-30,35.11000061035156
2020-07-01,35.279998779296875
2020-07-02,35.380001068115234
2020-07-06,35.59000015258789
2020-07-07,34.63999938964844
2020-07-08,34.54999923706055
2020-07-09,34.5
2020-07-10,34.68000030517578
2020-07-13,34.439998626708984
2020-07-14,35.220001220703125
2020-07-15,36.70000076293945
2020-07-16,36.369998931884766
2020-07-17,37.709999084472656
2020-07-20,37.16999816894531
2020-07-21,37.47999954223633
2020-07-22,38.38999938964844
2020-07-23,38.43000030517578
2020-07-24,38.59999847412109

Indicator data:
Answer: 0.0244