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Table 6 Contingency table to test the dependence between X(t) and T for Apple

From: Drawdown-based risk indicators for high-frequency financial volumes

  

X(t)

    

T

 

\((-\infty , 9] \times 10^4\)

\((9, 12.5] \times 10^4\)

\((12.5, 17) \times 10^4\)

\([17, 25) \times 10^4\)

\([25, +\infty ) \times 10^4\)

 

(0, 2]

3015(3405.8)

5572(5345.1)

5792(5429.1)

5085(4983.9)

2439(2739.1)

 

(2, 4]

593(477.4)

717(749.2)

627(761.0)

729(698.6)

404(383.9)

 

(\(4, +\infty\))

484(208.8)

133(327.7)

104(332.7)

174(305.6)

448(168.0)

  1. The numbers in brackets are the theoretical values obtained under the independence hypotheses