There was an error loading the page.
From users who are members of Transition to university :
|Christian Lawson-Perfect||said||Should not be used||2 years, 10 months ago|
|Elliott Fletcher||said||Needs to be tested||2 years, 10 months ago|
|Chris Graham||said||Has some problems||2 years, 10 months ago|
Christian Lawson-Perfect 2 years, 10 months ago
Saved a checkpoint:
The options don't explicitly list two events! They're all of the form "event A given event B" - B isn't an event you can put a probability on, because it's already happened.
I can't find a quick way of rewording this so it makes sense, so I'm marking as shouldn't use.
Elliott Fletcher 2 years, 10 months ago
Thanks for the feedback Chris, i have tried a new way of formatting the advice for part b), so hopefully it looks better now. Also i have tried to draw my conclusions earlier in b) as well, i just left it as it was for the die one as i thought there wasn't much more i could do for that one.
Chris Graham 2 years, 10 months ago
This looks good now. Just a couple of small changes to the advice:
- It doesn't make sense to number the parts of the advice in b), since they are not numbered in the question. Either number them (i),(ii),(iii), or find a different way to format the advice for b).
- The student does not need to work out the probabilities in order to answer the question, which is assessing their understanding of the concept. I would prefer that you draw your conclusion earlier in the advice for each part (e.g. for the cards, at the point where you state there are now only 51 cards in the deck, and only 3 kings) And then go on after that, with something like. "In fact, we can calculate...".
Chris Graham 2 years, 10 months ago
I'm not sure there's any reason to have "Must the fraction be reduced" ticked. I can't think of a reason why the student might enter any other equivalent fraction. I would untick to remove the prompt, which could unnecessarily confuse a student.
The following statement,
"Randomly selecting a boy from a class of 15 boys and 15 girls given that the previous randomly selected student from the class was a girl"
is ambiguous and needs to be worded differently. Has the girl been removed from the class? Without that information, it is impossible to answer.
To some extent, the same is true of the card deck question, which could also be clearer.
|Identify independent events||Should not be used||Elliott Fletcher||20/11/2019 14:40|
|The gambler's fallacy - probability of getting heads again after repeatedly getting heads||Ready to use||Christian Lawson-Perfect||20/11/2019 14:43|
|Maria's copy of The gambler's fallacy - probability of getting heads again after repeatedly getting heads||draft||Maria Aneiros||27/05/2019 02:29|
|The gambler's fallacy - probability of getting heads again after repeatedly getting heads||draft||Xiaodan Leng||11/07/2019 02:00|
|The gambler's fallacy - probability of getting heads again after repeatedly getting heads||draft||Patricia Cogan||16/01/2020 10:46|
No variables have been defined in this question.
This variable doesn't seem to be used anywhere.
Error in variable testing condition
There's an error in the condition you specified in the Variable testing tab. Variable values can't be generated until it's fixed.
No parts have been defined in this question.
Select a part to edit.
Test that the marking algorithm works
Check that the marking algorithm works with different sets of variables and student answers using the interface below.
Create unit tests to save expected results and to document how the algorithm should work.
There's an error which means the marking algorithm can't run:
Click on a note's name to show or hide it. Only shown notes will be included when you create a unit test.
No unit tests have been defined. Enter an answer above, select one or more notes, and click the "Create a unit test" button.
The following tests check that the question is behaving as desired.
This test has not been run yet This test produces the expected output This test does not produce the expected output
This test is not currently producing the expected result. Fix the marking algorithm to produce the expected results detailed below or, if this test is out of date, update the test to accept the current values.
One or more notes in this test are no longer defined. If these notes are no longer needed, you should delete this test.
|This note produces the expected output||Current:||
This test has not yet been run.
In order to create a variable replacement, you must define at least one variable and one other part.
|Variable||Answer to use||Must be answered?|
The variable replacements you've chosen will cause the following variables to be regenerated each time the student submits an answer to this part:
These variables have some random elements, which means they're not guaranteed to have the same value each time the student submits an answer. You should define new variables to store the random elements, so that they remain the same each time this part is marked.
This question is used in the following exams: