Could someone help me with this task?

I'm currently studying tree diagrams in math (10th grade) and I wanted to ask if my answer is correct.
The task is: From an urn containing 4 red, 3 blue and 2 green balls, two balls are drawn one after the other without replacement.

a) Draw the corresponding tree diagram.

b) Calculate the probability of not drawing the same colors.

(2 votes)
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Halbrecht
2 months ago

you have too many paths

three times the colour in succession must not stand there (that would be DREI drawing)

would also be clear

.

You’re not doing good for yourself when you pack everything so tight

.

attempts for clarity to write the fractures once as 7/12, so transverse

.

You searched too few

you need

RG RB

BG

GR GB

thus 6 summands

.

simpler with the complement

1 – (RR + BB + GG =

1m345
2 months ago

Hello, I’m in the 10. Great we did. In the picture that would be the right solution.

VG

Halbrecht
2 months ago
Reply to  1m345

a decimal place should already be in the result, better even two