Table 4: Statistical properties of the $\sigma$ -drop and control samples, showing mean and median values of the four parameters used for matching the samples.
$\sigma$ -drop sample Control sample

Property mean median mean median

Distance (Mpc) 18.24 17.25 19.47 18.15

B Magnitude -20.53 -20.70 -20.48 -20.32

d/D 0.66 0.71 0.63 0.64

Type 2.2 2.5 2.3 2.5

**Table 4:** Statistical properties of the $\sigma$ -drop and control samples, showing mean and median values of the four parameters used for matching the samples.
	$\sigma$ -drop sample	Control sample
Property	mean	median	mean	median
Distance (Mpc)	18.24	17.25	19.47	18.15
B Magnitude	-20.53	-20.70	-20.48	-20.32
d/D	0.66	0.71	0.63	0.64
Type	2.2	2.5	2.3	2.5

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