Stream ecologists are interested in the number of distinct organisms found in streams and whether or not differences exist based on geography. Separate random samples are obtained from sites in Northeastern and Southeastern streams and the number of distinct organisms is recorded. They are given as separate stemplots for Northeastern and Southeastern streams
Reference: Ref 2-5
The mean number of distinct organism recorded for Northeastern streams
- is 16.93.
- is 36.93.
- is 37.50.
- cannot be determined from the information given.