The correlation between the number of hours spent

1. The correlation between the number of hours spent studying and the number of exam mistakes is -0.25 , if Howard is ABOVE average in hours of studying, what can be predicted about his exam performance2. Howard says the correlation of -0.25 in (1) is illogical. Claiming that since studying usually improves test performance, the correlation should be positive. Is he right? explain.3. He believes the size of the correlation in (1) can be increased with a transformation of scale. He suggests the same data is re analyzed and number of hours, is converted into number of minutes studying. Will this work? explain.

 

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