- A6
- B5
- C12
- D7
Step-by-Step Solution
Classes: 0-8, 8-16, 16-24, 24-32, 32-40, 40-48. The value 47 lies in 40-48, the 6th class. So 6 intervals are needed.
Answer: A) 6
A data set of 60 observations is grouped into classes of size 8 starting at 0-8. The largest observation is 47.
How many class intervals are needed to include all observations up to 47?
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