Back to Back Stem and Leaf 2

1
Back to Back Stem and Leaf (2)

• Statistics

2
Two makes of batteries are being compared to see
which has the longest life. Fourteen batteries
of each make are tested under laboratory
conditions and the results for the tests are
shown in the next slide.
Draw a back to back stem and leaf diagram to
compare the figures.
3
Alpha Battery Company
Beta Battery Company
Which of the two makes of battery would you say
had the longest life? Which company would you buy
your batteries from?