Agile Thursday Quiz: Questions about Burn-up charts…

For this ATQ,  Pawel Brodzinski helped me out with the questions.
1) Looking at a burn-up chart one can say:
a) How much work has been done
b) How much work is yet to be done
c) What is roughly the pace at which the work is progressing
d) When roughly the work is expected to be done
e) How much time has elapsed since the team started tracking work using the chart
2) Looking at a burn-up chart one can’t say:
a) How much time it took to build work items that are completed
b) How many work items were completed on each day
c) The exact date when the work will be finished
d) How many people worked in a team on each day
e) What the quality of estimates for each work item was
3) On a burn-up chart you measure amount of work on a vertical axis. What measure you can use?
a) Story points
b) Number of work items of any type
c) Number of user stories
d) Weighted size, e.g. if you use T-shirt sizing, L item will be worth more than M, etc.
e) Estimated effort needed to complete work
4) What is a difference between a burn-up and a burn-down chart?
a) On a burn-up chart the curve goes up, not down
b) It is easier to show scope change on a burn-up chart
c) On a burn-up chart the curve shows only change of completed work, while on burn-down it can also refer to the change of scope
d) Steepness of the curve on a burn-up chart always allows to figure out the pace of work, while on a burn-down chart it isn’t always possible
e) A burn-up chart can be easily enhanced to Cumulative Flow Diagram while it’s not that easy with a burn-down chart

Please add your answers in the comments and on monday I’ll publish Pawel’s answers.