Sample Population

$$

Person Status

Allen Unpaid stay$-$at$-$home dad. Has not looked for a job in several years

Ben College president

Allison Part$-$time welder. Actively looking for full$-$time work

Brittany Self$-$employed full$-$time wedding singer

Cathy Full$-$time physician's assistant

Calvin Retired finance professor. Last applied for work $10$ weeks ago

Diane Laid$-$off fork$-$lift operator expecting to be recalled

David Works for a bicycle store. Age $70$

Evelyn Manager of health food store

Eli Museum guard. Was not at work last week due to illness

Flora Has never been employed. Looked for a job last week

Frank Fired from job as an investment banker. Last looked for work three weeks ago

$$

Refer to Table $28-1.$ How many in the sample are in the labor force?

a$.11$

b$.9$

c$.8$

d$.10$