IQR = Q_{3}-Q_{1}
IQR = Q_{3}-Q_{1}
\frac{42+43}{2} = \frac{85}{2} = 42.5
\frac{42+43}{2} = \frac{85}{2} = 42.5
\frac{51+54}{2} = \frac{105}{2} = 52.5
\frac{51+54}{2} = \frac{105}{2} = 52.5