construct both a ungrouped & grouped frequency distribution for the data given below207 211 204 208 202 203 211 202 205 212 210 212 204 199 204 201 213 200 204 207

Expert Answers
embizze eNotes educator| Certified Educator

Putting the data in order we get:

199,200,201,202,202,203,204,204,204,204,205,207,207,208,
210,211,211,212,212,213

The ungrouped frequency distribution:

199   1
200   1
201   1
202   2
203   1
204   4
205   1
207   2
208   1
210   1
211   2
212   2
213   1

A grouped frequency distribution (not using class boundaries)

199-201  2
201-203  3
203-205  5
205-207  1
207-209  3
209-211  1
211-213  4
213-215  2

(The class boundaries would be 198.5-201.5 etc...)

**The grouped frequency uses a class size of 2; you could use a class size of 3 giving you 5 classes. This would be the smallest number of classes usually recommended. **