We’ve seen in the previous exercise that not all subjects can enter the elevator, since the sum of their weights (saved in the vector weights.kg.all) exceeds 630 kg.
To decide who can enter the elevator: calculate
the cumulative weights using the function cumsum() and store them in a vector (with a length of 10)
called cum.weight.
If you print the vector cum.weight in your RStudio environment: it should look like:
[1] 59.8752 144.6984 244.4904 319.3344 370.5912 439.5384 530.2584 591.0408 672.6888 767.9448 .