Based on the frequency distribution below, what is the relative frequency for the class 1,600 up to 1,800? (Answer as a decimal)

Monthly Commissions

Frequency

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 up to 1,600 40

1,600 up to 1,800 24

1,800 up to 2,000 9

2,000 up to 2,200 4