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# Edexcel s2 help

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

For question 5 5aii shouldnt the value 8 be used as its closer to 0.975? the mark scheme has used the value of 9 instead.
2. (Original post by imran_)
https://57a324a1a586c5508d2813730734...%20Edexcel.pdf

For question 5 5aii shouldnt the value 8 be used as its closer to 0.975? the mark scheme has used the value of 9 instead.
Huh? For 8 you get a probability of .9578 and for 9 you get a probability of 0.9876. The difference from 0.975 is 0.0172 and 0.0126.

Surely you can see that 0.0126 is smaller than 0.0172 and hence 0.9876 is closer to 0.975 than 0.9578?
3. (Original post by Zacken)
Huh? For 8 you get a probability of .9578 and for 9 you get a probability of 0.9876. The difference from 0.975 is 0.0172 and 0.0126.

Surely you can see that 0.0126 is smaller than 0.0172 and hence 0.9876 is closer to 0.975 than 0.9578?
****, i need some sleep lol i didnt even notice that
4. (Original post by imran_)
****, i need some sleep lol i didnt even notice that
Definitely.

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