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I want the answer with a clear explanation . I will give you the best rate . Thank you. QUESTION 3 The scores of 18

I want the answer with a clear explanation . I will give you the best rate . Thank you.
QUESTION 3 The scores of 18 students are summarised as below. N Ex Ex2 Mode Q3 score 18 1116 73366 67.00 74.25 a) Calculate the mean and standard deviation. (4 marks) b) Compute the coefficient of skewness. Hence, comment on the shape of the distribution. (3 marks) c) Explain the meaning of the value for third quartile (Q3) for this study. (1 mark)

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