Chris Graham

Chris Graham on Biomedical Sciences Diagnostic Test - practice 7 years, 2 months ago

Gave some feedback: Ready to use

Chris Graham on Amount of substance needed to prepare a solution 7 years, 2 months ago

Gave some feedback: Ready to use

Chris Graham commented on Amount of substance needed to prepare a solution 7 years, 2 months ago

Changed headings in advice to alphabetic. Looks OK.

Chris Graham on Biomedical Sciences Diagnostic Test - practice 7 years, 2 months ago

Gave some feedback: Needs to be tested

Chris Graham commented on Extract common factors of polynomials 7 years, 3 months ago

The pattern match on line 10 of the custom function no longer appears to handle the commutativity of the expression, despite using the doCommute option. E.g. $2*(17x+2)$ is not acccepted, however $(17x+2)*2$ is.

Chris Graham on Extract common factors of polynomials 7 years, 3 months ago

Saved a checkpoint:

Checkpointing before looking at the problem with the user defined function mark_factorised which no longer appears to be functioning correctly.

Chris Graham on Extract common factors of polynomials 7 years, 3 months ago

Gave some feedback: Has some problems

Chris Graham commented on Complete the square and find solutions 7 years, 3 months ago

Changed gaps to number entry, as they were not being marked correctly as mathematical expressions.

Chris Graham commented on Perform a one-sample t-test 7 years, 5 months ago

Thanks Lauren, can you check with Phil regarding the wording of the last part. I think (I'm no statistician) that you are not supposed to "accept" a null hypothesis, rather you "do not reject" it.