Jose predicted that he would sell 48 umbrellas. He actually sold 72 umbrellas.What are the values of A and b in the given table? Round to the nearest tenth if necessary. Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Umbrellas 48 72 negative 24 24 A b
Answer
A
A is equal to 24 over 24 ; b is equal to 100 percent
B
A is equal to 24 over 48 ; b is equal to 50 percent
C
A is equal to 48 over 72 ; b is equal to 67 point 7 percent
D
A is equal to 24 over 72 ; b is equal to 33 point 3 percent
Explanation
Percent error uses the absolute error divided by the exact value. Here, that ratio is 24 ÷ 72, so A is 24/72. Converting to a percent gives about 33.3%, so b is 33.3%; this matches choice D.
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