Rounding...

[astone788]

Sometimes a question will say write your answer correct to 1 decimal place. But then the next question requires you to use your answer from the previous question to work out the answer.

In this case, do we use the rounded up figure from the previous question to make predictions?

[Stick]

No, use an unrounded figure unless told otherwise.

[astone788]

thanks champ

[julie9300]

What about a linear equation? Some questions ask you to find the linear regression line and round up the numbers to 2 decimal places, and then the next question asks you to use that equation. Would you use the values rounded to two decimal places?

[Stick]

I use a four decimal place equation just to be safe.

[biancajames]

Just a quick question...
how do you figure out the critical path from a table of values (duration and EST)

[Daenerys Targaryen]

Just a quick question...
how do you figure out the critical path from a table of values (duration and EST)

Where ever the EST and LST are the same, it means its on the Critical path

[Nima2703]

write it in 2 decimal unless stated otherwise or whatever it asks every time but scroll up your calculator and use UNROUNDED answers every time!!

[oneialex]

Unless stated in the question I've always (as instructed to do so) rounded to 4 decimal places. It's particularly useful, especially with linear equations; others have already mentioned this anyway. I don't think it makes a massive difference as long as you've stated in your answer how you've rounded your question (e.g. 1.0401, rounded to 4 decimal places; 1.04, rounded to 2 decimal places; etc.), as it demonstrates to the examiner that you're still trying to be precise with your answer, even when the question didn't specify (and only when it doesn't specify).