While Dorothy had her garage sale, she kept track of how many items sold within different price ranges. Look at the table and then give the relative frequency for the interval of $11 to $15. The relative frequency for $11 to $15 is
Interval
Frequency
Relative
Frequency
Sl to $5
S6 to S10
S11 to $15
$16 to $20
S21 to $25
S26 to $30
S31 to $35
8
6
4
2
4
6
2