Fit to the line of sight velocity dispersion of Sculptor in MOND with different velocity anisotropy models, as discussed in Sect. 3.4. The dotted blue line is for the best fit constant velocity anisotropy, β = −0.03 (χ² = 5), the dashed red line is for a conservative (because an upper limit is imposed upon β) radially varying (χ² = 3.75), and the solid green line is for an unconstrained (χ² = 2.6).