Math Problem Statement

Use the data in the table below, which shows the employment status of individuals in a particular town by age group.

A person from the town is randomly selected; what is the probability that the individual is employed full-time, given that they are between 18 and 49 years of age? .0.603

Incorrect: Your answer is incorrect. Your answer cannot be understood or graded. More Information Full-time Part-time Unemployed 0-17 24 164 371 18-25 190 203 148 26-34 348 69 27 35-49 581 179 106 50+ 443 162 173

Solution

To solve this problem, we need to calculate the conditional probability that an individual is employed full-time given that they are between 18 and 49 years of age.

The formula for conditional probability is:

P(AB)=P(AB)P(B)P(A|B) = \frac{P(A \cap B)}{P(B)}

Here, AA is the event that the person is employed full-time, and BB is the event that the person is between 18 and 49 years old.

Step 1: Calculate the total number of people between 18 and 49 years old.

From the table, we sum the people in the age groups 18-25, 26-34, and 35-49:

\text{Total between 18-25} &= 190 + 203 + 148 = 541, \\ \text{Total between 26-34} &= 348 + 69 + 27 = 444, \\ \text{Total between 35-49} &= 581 + 179 + 106 = 866. \end{align*}$$ Total number of people between 18 and 49: $$541 + 444 + 866 = 1851.$$ ### Step 2: Calculate the number of people employed full-time between 18 and 49 years old. From the table, we sum the full-time employed individuals in the age groups 18-25, 26-34, and 35-49: $$\begin{align*} \text{Full-time between 18-25} &= 190, \\ \text{Full-time between 26-34} &= 348, \\ \text{Full-time between 35-49} &= 581. \end{align*}$$ Total number of people employed full-time between 18 and 49: $$190 + 348 + 581 = 1119.$$ ### Step 3: Calculate the conditional probability. The conditional probability that an individual is employed full-time given that they are between 18 and 49 years of age is: $$P(\text{Full-time}|\text{18-49}) = \frac{\text{Number of full-time employed between 18-49}}{\text{Total number of people between 18-49}} = \frac{1119}{1851}.$$ ### Step 4: Simplify the fraction. Calculating the decimal value: $$\frac{1119}{1851} \approx 0.604.$$ Therefore, the probability that an individual is employed full-time given that they are between 18 and 49 years of age is approximately $$0.604$$. Would you like any more details or have any questions? Here are some questions you might want to ask: 1. How do you determine conditional probability? 2. What if the data includes more categories? 3. How does this probability change if more age groups are added? 4. Can you explain how to calculate probabilities for part-time or unemployed statuses? 5. How would the calculation change if given more complex conditions? **Tip:** Always ensure you understand the conditions and categories in probability problems, as they can significantly affect your calculations.

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Math Problem Analysis

Mathematical Concepts

Probability
Conditional Probability

Formulas

Conditional Probability formula: P(A|B) = P(A ∩ B) / P(B)

Theorems

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Suitable Grade Level

Grades 10-12