To solve the given problem, we need to calculate the total labor force, the number of unemployed people, the labor force participation rate, and the unemployment rate using the provided data.
- Total Labor Force: The labor force includes all employed (both part-time and full-time) and unemployed individuals who have searched for a job within the last four weeks.
- Unemployed People: This includes individuals who have searched for a job within the last four weeks.
- Labor Force Participation Rate: This is the ratio of the labor force to the total civilian noninstitutionalized working-age population, expressed as a percentage.
- Unemployment Rate: This is the ratio of unemployed individuals to the total labor force, expressed as a percentage.
The total labor force \( L \) is the sum of all employed individuals and those who are unemployed but have recently searched for a job. This can be expressed as:
\[
L = E + U
\]
where:
- \( E = \text{part-time workers} + \text{full-time workers} = 4.6 + 15.71 = 20.31 \) million
- \( U = \text{searched less than two weeks} + \text{searched two to four weeks} = 3.20 + 1.72 = 4.92 \) million
Thus, the total labor force is:
\[
L = 20.31 + 4.92 = 25.23 \text{ million}
\]
The number of unemployed individuals \( U \) who have recently searched for a job is:
\[
U = 4.92 \text{ million}
\]
The labor force participation rate \( P \) is calculated as the ratio of the total labor force to the civilian noninstitutionalized working-age population, expressed as a percentage:
\[
P = \left( \frac{L}{W} \right) \times 100
\]
where \( W = 35.9 \) million. Therefore:
\[
P = \left( \frac{25.23}{35.9} \right) \times 100 \approx 70.28\%
\]
The unemployment rate \( R \) is the ratio of unemployed individuals to the total labor force, expressed as a percentage:
\[
R = \left( \frac{U}{L} \right) \times 100
\]
Thus:
\[
R = \left( \frac{4.92}{25.23} \right) \times 100 \approx 19.5\%
\]
- Total Labor Force: \( \boxed{L = 25.23} \) million
- Unemployed People: \( \boxed{U = 4.92} \) million
- Labor Force Participation Rate: \( \boxed{P = 70.28\%} \)
- Unemployment Rate: \( \boxed{R = 19.5\%} \)