A-Level Edexcel Statistics S1 June 2010 Q6e,f : ExamSolutions

[ExamSolutions_Maths]

@9frozenheart Conditional probability / Inverse normal distributions / Linear interpolation of medians and quartiles.

[NomanJohan]

I was looking for a more elaborate answer on 6f.
I think the range of values suppose to be t>500~505
You are always helpful anyway.

[YoussefMedhatAboutaleb]

Well the 500 ~ 505 range is the acceptable range as defined by the marking scheme. In other words your answer can be either 500 or 501 or 502 or 503 or 504 or 505, depending on how accurate your graph was. For example if you solved the question and you got an answer of 501 say, and then I solved it and my answer was 503 both of us would score the mark since both of our answers lie in the range of acceptable values defined by the marking scheme as 500 ~ 505. Good luck.

[frozenheart]

Hi, I have my S1 exam tommorow and am pretty confident about it because of you! 1 quesiton, what would you say is the hardest 2-3 topics in s1?

[shweetii]

how can you assume that t is approx 500 ~ 505 and not 500~510?? please help I'm so confused!!!

[benfisher]

Great price rates on flights I would say.

[David__Murphy]

Hi, your videos are really helpful to me and a lot of people I know. Please keep them free to view without subscription. :)
Anyway, I had a question that is probably going to sound a bit stupid, but the question tells us to give a range of values for "t" so surely the answer the answer would be "t>500~505 km" ?

[isaacpk]

If f=15+2.03d for the first company, then f=5d for the second, not f=0.05d,  'd' represents 100km, not one km

[sympeathien]

wow! thank you so much!! I was stuck on that question for a while!