Probability s1

Help with highlighted please

Draw a tree diagram to try and help you visualise the different scenarios.

hi, im still struggling with drawing the tree diagram for the highlighted.
Could you help please?

You can draw two separate diagrams: one for Wednesday and one for Thursday, because they are independent. Start with Alison on both days (because David is dependent on Alison).

I just had a go, I suppose it would be something like this?

I would draw two separate diagrams like the one you drew, for each day, otherwise it might get complicated trying to figure out all the values. You don't have to draw the diagrams for this question by the way ... it is just a visualisation aid.

I already got the answers without drawing any diagrams.
But i dont know how i would draw a tree diagram or seperate venn diagrams.
COuld you show me please?

Thanks, that was really helpful!

No problem I write like a child I know

Thought you were a girl from your writing haha

Who's to say I'm not...