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1. https://57a324a1a586c5508d2813730734...%20Edexcel.pdf

can anyone help me with 7b please
2. (Original post by imran_)
https://57a324a1a586c5508d2813730734...%20Edexcel.pdf

can anyone help me with 7b please
IF the r.v. X represents the number of correct answers, then consider:

How many points are there for all the correct answers (as a function of X)?

Finish if you can, else further questions in spoiler.
Spoiler:
Show

How many wrong answers are there?

How many points are lost for the wrong answers?

And finally total number of points is?

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