It is believed that people in the higher classes of the ship had a higher chance of survival.

Reinforce or refute this hypothesis by finding out Survival Rate of Passengers for each class using your

python knowledge;

$($Hint: There are multiple ways of doing it but you benefit from using groupby method and Boolean

indexing to first find total passengers in each class $,$ second the total passengers who survived in each

class and finally divide the two results $)$ Your output may look like this ;

For the question below please;

Download Zest sales dataset from blackboard and import it in Jupyter under variable name : sales