A) State whether each situation involves one-variable or two-variable data.
i) Marcus calculates the median mark of
the class on an exam.
ii) An article discusses the possible link
between prolonged cell phone use and the
increased probability of brain cancer.
iii) A classroom survey shows that 70% of the
students plan to attend university, 15% plan
to attend college, 10% are going directly into
the workplace, and 5% are uncertain.
b) Choose one situation from part a. Explain how
you
decided whether the situation involved
one- or two-variable data.