Answer
The probability is 0.1.
Work Step by Step
The required probability is calculated as follows:
\[\begin{align}
& P\left( \text{More than 4 freights} \right)=p\left( 4 \right)+p\left( 5 \right)+p\left( 6 \right) \\
& =0.050+0.025+0.025 \\
& =0.1
\end{align}\]
The probability value is 10% only; hence, it seems that a majority of the families belong to a population similar to that of the Germans on board the St. Andrew.
