Which QC tool would you use in each scenario:

a$.$ Quick manual tally to gather data.

b$.$ Determine if process is stable.

c$.$ Visualize the frequency of some occurrence over time.

d$.$ Create a common understanding of the as$-$is process.

e$.$ Brainstorm the reason defects are occurring.

f$.$ Visualize the $\frac{80}{20}$ rule of defect causes.

g$.$ Identify if $x$ has any relation to $y.$