To find the probability that a person with an iron deficiency is 20 years or older, we need to follow these steps:
1. Identify the Total Number of People with Iron Deficiency:
From the table, the total number of people with iron deficiency is 102.
2. Identify the Number of People with Iron Deficiency Who Are 20 Years or Older:
We need to consider the number of people in the 20-30 years category and the number in the above 30 years category.
- 20-30 years: [tex]\(37\)[/tex]
- Above 30 years: [tex]\(24\)[/tex]
So, the total number of people with iron deficiency who are 20 years or older is [tex]\(37 + 24 = 61\)[/tex].
3. Calculate the Probability:
The probability is given by the ratio of the number of people with iron deficiency who are 20 years or older to the total number of people with iron deficiency.
[tex]\[
\text{Probability} = \frac{\text{Number of People with Iron Deficiency Who Are 20 Years or Older}}{\text{Total Number of People with Iron Deficiency}}
\][/tex]
[tex]\[
\text{Probability} = \frac{61}{102}
\][/tex]
4. Simplify the Probability (if possible):
Calculating the above ratio gives approximately [tex]\(0.598\)[/tex].
Hence, the probability that a person with an iron deficiency is 20 years or older is approximately [tex]\(0.60\)[/tex].
Answer:
C. [tex]\(0.60\)[/tex]
