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Edexcel statistics 2 help!

Hi guys i need help with a question. Please see attached question
part d of the question says: find the probability that the time will be:
What are your thoughts so far?
Original post by SeanFM
What are your thoughts so far?


i have my answers, i just need yours to confirm :smile:
Original post by Paras Agarwal
i have my answers, i just need yours to confirm :smile:


Don't be shy :wink: let's see your working.
Original post by SeanFM
Don't be shy :wink: let's see your working.


shy? if you're not going to put up answers then its okay mate :smile: i'll just wait for someone to help me. My TSR app doesnt allow me to post from my phone so i have great difficulty in posting pics to this website.

thanks though :smile:
help help?

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