Answer :
The correlation coefficient that describes the strongest relationship between food intake and weight loss is -0.90.
A correlation coefficient describes the strength and direction of the relationship between two variables. The correlation coefficient can range from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation.
Out of the options given, the correlation coefficient that describes the strongest relationship between food intake and weight loss is -0.90. This represents a strong negative correlation, meaning that as food intake increases, weight loss decreases, and vice versa. A correlation coefficient of 0 indicates no correlation, while coefficients of +0.83 and +0.50 represent moderate positive correlations, meaning that as food intake increases, weight loss tends to increase as well, but not as strongly as in the case of a negative correlation.
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