Your Practice Paper – Applications and Interpretation HL for IBDP Mathematics
1
Standard Form
� Standard Form : A number in the form ( �) a� 10 k , where 1�a � 10 and k is an integer
2
Approximation and Error
� Summary of rounding methods : |
2.71828 |
Correct to 3 significant figures |
Correct to 3 decimal places |
Round off |
2.72 |
2.718 |
� Consider a quantity measured as Q and correct to the nearest unit d :
1 d : Maximum absolute error 2
1 1
Q � d � A � Q � d : Range of the actual value A 2 2 1
Q� d : Lower bound ( Least possible value ) of A
2 1
Q� d : Upper bound of A
2 Maximum absolute error
�100 % : Percentage error Q
2
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