Question: A manufacturer found that there were 25 defective units out of the 180 sample units. Find the decimal number which is equivalent to the fraction of the defective units to the total number of sample units.
A ) 0.33 B ) 0.17 C ) 0.23 D ) 0.13
Steps to derive
1 The fraction of defective units to the total number of sample units = (number of defective units) / (the total number of sample units).
[Substitute the values.] 2 = 25180
[Divide the numerator and the denominator by their G.C.F, 5.] 3 = 536
[Simplify.] 4 = 0.13
5 The decimal number that is equivalent to the fraction of defective units to the total number of sample units is 0.13.
