Consider the following stem and leaf plot: (I: 8 E l" n p: H) U: #wm bI .P-'H'PPP .3'4.P.:'\"*.P'.!'-' "'3.P'=.F".:*'*..'~"1 \\O Suppose that a frequency distribution was developed from this, and there were 5 classes (10- under 20, 20under 30, etc.). What is the cumulative frequency for the 30-under 40 class interval? 018 013 5 O9 014