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

Explanation:

Step1: Recall probability formula

$P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$

Step2: Find first probability

Favorable for 1 is 41, total is 300.

Step3: Find second probability

Sum of non - deficient 20+ is 43 + 46, total is 300.

Answer:

1. Probability of iron - deficiency and < 20 years old: $\frac{41}{300}$
2. Probability of no iron - deficiency and ≥ 20 years old: $\frac{43 + 46}{300}=\frac{89}{300}$