a. Let a and b be constants and let yi = axi +b for . What are the relationships between x ¯and y¯ and between sx2and sy2?
b. A sample of temperatures for initiating a certain chemical reaction yielded a sample average (°C) of 87.3 and a sample standard deviation of 1.04. What are the sample average and standard deviation measured in °F? [Hint: 9/5C+ 32 .]
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