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 . The probability of randomly choosing a person who does not have iron deficiency and is 20 years old or more is .
