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    http://files.physicsandmathstutor.co...%20A-Level.pdf
    Q2b please
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    Post your working so far.
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    (Original post by Muttley79)
    Post your working so far.
    Well I dont know how to approach this question, Neither the expected value nor observed value ...
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    Question says: "The Chi squared test can be used to determine whether the results of this
    investigation indicate a significant difference in the distribution of young larvae between the light and the dark side"

    Now your focus is only on the young - and the values in the table are your observed values.

    Do you think you can now carry on with the question?
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    (Original post by Yusufff)
    Question says: "The Chi squared test can be used to determine whether the results of this
    investigation indicate a significant difference in the distribution of young larvae between the light and the dark side"

    Now your focus is only on the young - and the values in the table are your observed values.

    Do you think you can now carry on with the question?
    I am so confused
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    (Original post by alesha98)
    I am so confused
    We can't post full solutions ...

    If there was no difference what would the results be - these are the expected values.
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    Did you manage to work out the answer to this? I have been trying for the last hour and I don't think the answer is right! I cannot work it out.
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    (Original post by cb3563)
    Did you manage to work out the answer to this? I have been trying for the last hour and I don't think the answer is right! I cannot work it out.
    this should help a fair bit, Im still learning it myself
    http://www.shmoop.com/genetics/chi-squared-test.html
 
 
 
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