Refer to the following distribution of commissions: (6 pts) Monthly Commissions Class Frequencies $600 up to...
Refer to the following distribution of commissions: (6 pts) Monthly Commissions Class Frequencies $600 up to $800 3 800 up to 1.000 7 1.000 up to 1.200 11 1.200 up to 1.400 22 1.400 wp to 1.600 10 1.600 up to 1.800 24 1,500 up to 2.000 9 2.000 up to 2.200 4 a) What is the relative frequency for those salespersons that earn from $600 up to $1,200? b) What is the cumulative frequency for those salespersons that earn up to $1,800? c) What is the relative frequency for those salespersons that earn up to $1,400?