Hey PC, if for Q27 (a) (i) and (ii) I didn't give the answer to the nearest km or hour, will they still award me the marks? Im worried that they may not give me full marks coz I wrote "8377.58" and the hours one I think I wrote "9 hours 11 mins"
EDIT: Isn't the skewness of a graph determined by mean-mode? Q26 (b) (ii), I got the mean as 66 or something and the mode was the class centre of 61-65 which was 63. i.e 66(mean)-63(mode) = 3...the number is positive hence it is positively skewed...
Not 100% though. But very sure that the skewness is determined by mean-mode.
EDIT: Isn't the skewness of a graph determined by mean-mode? Q26 (b) (ii), I got the mean as 66 or something and the mode was the class centre of 61-65 which was 63. i.e 66(mean)-63(mode) = 3...the number is positive hence it is positively skewed...
Not 100% though. But very sure that the skewness is determined by mean-mode.
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