In the accounting branch of a commercial institute, the percentage of male and female workers is 48% and 52% respectively. In this branch, 40% of males and 20% of females are age 25 or older. If one of the workers is selected at random, what is the probability Y that the worker is under 25 years old?	Choose the correct option
A) 0.30
B) 0.25
C) 0.45
D) 0.70
E) 0.90
Percentage of male worker = 48   Percentage of female worker = 52   Let total number of workers = 1000   number of male workers= 480   number of female workers = 520   Number of male age 25 or older = (4/10)*480= 
<gadget id="calculator">(4/10)*480</gadget>
<output>192</output>
192   Number of female age 25 or older=(2/10)*520= 
<gadget id="calculator">(2/10)*520</gadget>
<output>104</output>
104   Total number of workers 25 or older= 192+104= 
<gadget id="calculator">192+104</gadget>
<output>296</output>
296   Total number of workers under 25= 1000 - 296= 
<gadget id="calculator">1000 - 296</gadget>
<output>704</output>
704   Probability that a worker randomly selected is under 25 years old= 704/1000= 
<gadget id="calculator">704/1000</gadget>
<output>88/125 = around 0.704</output>
.704   Alternatively , since the answer options are not close , we can use estimation here .   Percentage of male worker 25 or older= (4/10)*48 = 20 % approx   Percentage of female worker 25 or older = (2/10)*52 = 10 % approx   Percentage of total worker 25 or older = 30 %   Percentage of total worker under 25 = 70 %   Probability that a worker randomly selected is under 25 years old Y= .7   Answer 0.70
<result>D</result>
In the accounting branch of a commercial institute, the percentage of male and female workers is 48% and 52% respectively. In this branch, 40% of males and 20% of females are age 25 or older. If one of the workers is selected at random, what is the probability Y that the worker is under 25 years old?