Quiz Two • Name:

Use the Bryophyllum pinnatum, a member of the kalanchoe family, leaf length data to construct a relative frequency histogram.

1. _________ What level of measurement is the leaf length data?
2. _________ Determine the sample size n.
3. _________ Determine the minimum.
4. _________ Determine the maximum.
5. _________ Calculate the range.
6. _________ Determine the bin width. Use 5 bins.
7. Fill in the following table with the bin upper limits in the first column, the frequencies in the second column, and the relative frequencies in the third column.

   Bins	Frequency	Relative Frequency f/n
   _________	_________	_________
   _________	_________	_________
   _________	_________	_________
   _________	_________	_________
   _________	_________	_________
   Sums:	_________	_________

8. Sketch a relative frequency histogram of the leaf length data on this paper.
9. _________ What is the shape of the distribution?