Help 20 ​

Five values

Minimum value = 46

Max value = 66

Median of the data set = 58  [ the red line ]  = Q₂ = Second Quartile

First quartile  = 55 = Q₁    [it's the median of the data  set points to the left of Q₂ ]

Third quartile = 63  = Q₃  [ it's the median of the data set points to the right of Q₂ ]