Tarzan is once again swinging on his vine while Jane times him. At time = 4 seconds, Tarzan is at one end of
his swing and 30 feet from the riverbank swinging over
land. When Tarzan is swinging over land, graphically
those distances will be positive numbers. At time = 9
seconds, Tarzan is at the other end of his swing and 42
feet from the riverbank swinging over water. When
Tarzan is swinging over water, graphically those
distances will be negative numbers.

Step-by-step explanation:

Remember that a box plot shows the quartiles of the data set, the minium value and the maximum value.

In this case, the lowest score was 40, that means A is correct.

The interquartile range is the difference between the first and the third quartile, which is 90-70= 20. So, B is correct.

The line inside the box represents the second quartile, which is also the median of the data set, in this case, the median is 75. Now, the median is calculated with the mean between the 5th and 6th score. That means E is correct.

Therefore, the right choices are A, B and E.