# create a figure for the plot.

fig, ax $=$ plt$.$subplots$()$

# create a histogram plot with $50$ bins of TPCP population data.

plt$.$hist$($tpcp$\_$df$[\text{'}$TPCP$\text{'}],$ bins$=50)$

# set a title for the plot, x$-$axis, and y$-$axis.

plt$.$title$(\text{'}$TPCP population distribution', fontsize$=20)$

ax$.$set$\_$xlabel$(\text{'}$TPCP$\text{'})$

ax$.$set$\_$ylabel$(\text{'}$Frequency$\text{'})$

# show the plot.

plt$.$show$()$