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Dramatically change the correlation

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1. If we assume that the conditions for correlation are met, which of the following are true? If false, explain briefly.

a) A correlation of -0.98 indicates a strong, negative association.

b) Multiplying every value of x by 2 will double the correlation.

c) The units of the correlation are the same as the units of y.

2. If we assume that the conditions for correlation are met, which of the following are true? If false, explain briefly.

a) A correlation of 0.02 indicates a strong positive association.

b) Standardizing the variables will make the correlation 0.

c) Adding an outlier can dramatically change the correlation.

Reference no: EM131008989

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