A correlation between two variables implies that:
A) there is a cause-effect relationship between the two variables.
B) it is impossible to measure one variable without measuring the other.
C) there is a mutual relationship between both the variables.
D) when one variable changes, the other variable always changes by exactly the same amount.
Question 2
Government certification of the weights and measures used in business can be justified because
A) no business operated for profit would have any interest in weighing and measuring accurately.
B) people cannot be trusted.
C) government officials, unlike private parties selling for profit, have no incentive to cheat.
D) it reduces total transaction costs below what they would be if all individual buyers or sellers had to check for themselves.
The inheritance of snail coiling direction as an example of a maternal effect gene.
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