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1. There are 644 boys and 520 girls in a school
the probability that a boy chosen at random studies french is 3/7
the probability that a girl chosen at random studies french 5/8

A) work out the number of students in the school who study french?

B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?

Can anyone help i have attempted but cant manage to find the answer
2. A) 601.

(644/7)×3=276
(520/8)×5=325
3. Tha
(Original post by Bio 7)
A) 601.

(644/7)×3=276
(520/8)×5=325
Thanks
4. (Original post by lara36)
There are 644 boys and 520 girls in a school
the probability that a boy chosen at random studies french is 3/7
the probability that a girl chosen at random studies french 5/8

A) work out the number of students in the school who study french?

B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?

Can anyone help i have attempted but cant manage to find the answer

this should help u through the whole problem if u don't understand how to do any part let me know and also let me know how helpful this was
5. (Original post by lara36)
There are 644 boys and 520 girls in a school
the probability that a boy chosen at random studies french is 3/7
the probability that a girl chosen at random studies french 5/8

A) work out the number of students in the school who study french?

B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?

Can anyone help i have attempted but cant manage to find the answer
always draw a tree diagram Nd you will see all the answers automatically that's what I do with all the probability questions and they always work
6. (Original post by brainmaster)
always draw a tree diagram Nd you will see all the answers automatically that's what I do with all the probability questions and they always work
Ive got the answer for that one could you help on another ?
E.g. “Maths”
9. (Original post by Y11_Maths)
E.g. “Maths”
Sorry ill make it more clear im just new here
10. (Original post by lara36)
Sorry ill make it more clear im just new here
No worries, welcome to TSR
11. (Original post by Y11_Maths)
No worries, welcome to TSR
Thanks
12. (Original post by lara36)

here you go. Let me know you dint understand something
13. (Original post by brainmaster)

here you go. Let me know you dint understand something
Thank ive got it could you help with this also
14. (Original post by lara36)
Thank ive got it could you help with this also
same concept again;

I hope u r understanding all this and not just using the answers
15. (Original post by brainmaster)
same concept again;

I hope u r understanding all this and not just using the answers
Yes i understand what your saying in the answer but anyway thank you for all your help
16. (Original post by lara36)
Yes i understand what your saying in the answer but anyway thank you for all your help
your welcome and you can ask me more if you like I'll be happy to help but i want u to understand what I'm doing

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Updated: February 28, 2018
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