1.	Which figure shows poor accuracy, but good precision?
		A.		B.
		C.		D.
		Hint
	2.	A student performs a chemistry experiment six times. He gets the same value each time, but this value differs significantly from the accepted value. Which choice best describes this situation?
		A.	good accuracy, good precision	B.	poor accuracy, poor precision
		C.	poor accuracy, good precision	D.	good accuracy, poor precision
		Hint
	3.	How many significant digits are there in the sum of 20.02 and 1.6?
		A.	5	B.	3
		C.	2	D.	4
		Hint
	4.	How many significant digits are there in the product of 12.4 and 1.2?
		A.	2	B.	4
		C.	3	D.	5
		Hint
	5.	A ruler with a scale marked in which units allows for the most accurate measurement of the length of a pencil?
		A.	inches	B.	millimeters
		C.	centimeters	D.	meters
		Hint