Statements 1 and 4 are true, the others are false.
Step-by-step explanation:
Step 1:
First, we need to convert the fractions into decimals so they can be compared to each other on a common scale.
The birch tree ; 
The pine tree ; 
The maple tree ; 
The oak tree ; 
Step 2:
Now we check each of the given options to so which are true.
Option 1; Most students found a pine tree, 77.7% is more than any other tree, so it is true.
Option 2; the maple tree > the pine tree. The maple tree was 25% while the pine tree was 77.7%, so it is false.
Option 3; the birch tree > the oak tree. The birch tree was 14.2% while the oak tree was 47.8%, so it is false.
Option 4; the pine tree > the birch tree. The pine tree was 77.7% while the birch tree was 14.2%, so it is true.
Option 5; the maple tree > the oak tree. The maple tree was 25% while the oak tree was 47.8%, so it is false.
The ground level is to be the zero level. When the elevator moves above the ground level, it is moving towards the positive integer and when the elevator moves below the ground level, it is moving towards the negative integer.
Elevator 2 moved down 6 feet from the ground level hence its position is labelled as