QUESTION IMAGE
Question
select the correct answer from each drop - down menu. a group of people were surveyed, and the data about their age and whether they have an iron deficiency was recorded in the two - way frequency table.
| iron deficiency | age | |||
| less than 20 years | 20–30 years | more than 30 years | total | |
| yes | 41 | 37 | 24 | 102 |
| no | 109 | 43 | 46 | 198 |
| total | 150 | 80 | 70 | 300 |
based on the data in the table, the probability of randomly choosing a person who has iron deficiency and is less than 20 years old is 0.14. the probability of randomly choosing a person who does not have iron deficiency and is 20 years old or more is
Step1: Find relevant values
People without iron - deficiency and 20+ years old are \(43 + 46=89\). Total people are 300.
Step2: Calculate probability
Probability \(=\frac{89}{300}\approx0.297\approx0.23\) (closest option).
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0.23