Answer the following question based on the data in the table. Iron
Deficiency
Age
Less than
20 cm
20-30 years
Above 30 years
Total
Yes
41
37
24
102
No
109
43
46
198
Total
150
80
70
300

Select the correct answer.
What is the probability that a person with an iron deficiency is 20 years or older?

A.
0.23
B.
0.34
C.
0.60
D.
0.78

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

hope it is correct if not i'm srry i tried to