SOLUTION
Write out the information given.
[tex]\begin{gathered} 25\text{years}=20\text{people} \\ 30\text{years}=20\text{people } \\ 35\text{year}=20\text{people} \end{gathered}[/tex]From the information given, we have the table below
Then the standard deviation becomes
[tex]sd=4.12[/tex]Hence
The standard deviation for ages of the people who puchase the ticket is 4.12
When the 39 years old who had purchased a ticket did not go for the trip, the table becomes
Then the standard deviation becomes
[tex]Sd=4.15[/tex]The standard deviation of the people who went on the bus tour is 4.15
Hence
[tex]4.15\text{ >4.12}[/tex]Hence
The standard deviation of the ages of the people who went on the bus tour is greater than the standard deviation of the ages of the people who purchased tickets.
Answer= Option A