The attribute $`$shape$`$ tells you how many rows and columns are in a DataFrame. $($An attribute, or a property, is not a method and is not called using parentheses.$)$

imdb$\_$by$\_$name.shape

Like an array, you can get the first element of the shape using $`[0]`,$ and the second element using $`[1]`.$ For instance, the number of rows in $`$imdb$\_$by$\_$name$`$ is:

imdb$\_$by$\_$name.shape$[0]$

We can use this to answer "How many movies are from the $20$th century?":

imdb$\_$by$\_$name$[$imdb$\_$by$\_$name.get$(\text{'}$Year$\text{'})<=2000].$shape$[0]$

$**$Question $4\mathrm{.}4.**$ Use $`$shape$`($and arithmetic$)$ to find the $*$proportion$*$ of movies in the dataset from the $20$th century, and the proportion from the $21$st century.

proportion$\_$in$\_20$th$\_$century $=$ imdb$\_$by$\_$name$[$imdb$\_$by$\_$name.get$(\text{'}$Year$\text{'})<=2000].$shape

proportion$\_$in$\_20$th$\_$century