Calculate the product moment correlation coefficient and interpret the result.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Calculate the product moment correlation coefficient and interpret the result. (8 marks)

Calculate the Spearman's rank correlation coefficient.

(iii)Obtain the least-squares regression equation of Y on X. Give your answers correct to three Decimal places.

(iv)Estimate the number of hours until her next visit to an ATM if she withdraws RM200. Hence (2 marks) comment on the accuracy of the estimated answer.

(b)Two-third of the households in a state are using TV box. A random sample of nine households are interviewed, calculate the probability that

exactly four of the households are using TV box;

(ii)no more than two of the households are using TV box.

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