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# S1 skewness (incorrect mark scheme?) watch

1. Hey so one of the mark schemes on a Solomon paper says:

Q2 – Q1 = 6; Q3 – Q2 = 5
∴ Q2 – Q1 > Q3 – Q2 ∴ slight +ve skew

I'm really confused because I've been taught that when Q2 - Q1 > Q3 - Q2 , this means that there is a -ve skew rather than a +ve skew, so is it right to say that the mark scheme is incorrect?
2. (Original post by jessyjellytot14)
Hey so one of the mark schemes on a Solomon paper says:Q2 – Q1 = 6; Q3 – Q2 = 5∴ Q2 – Q1 > Q3 – Q2 ∴ slight +ve skewI'm really confused because I've been taught that when Q2 - Q1 > Q3 - Q2 , this means that there is a -ve skew rather than a +ve skew, so is it right to say that the mark scheme is incorrect?
draw a diagram to find out.
Spoiler:
Show
the mark scheme is incorrect
3. (Original post by jessyjellytot14)
...
As QPRTeags said - markscheme is incorrect. Skew is negative.

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