Reference no: EM13579109

The following cross tabulation shows household income by educational level of the head of household (Statistical Abstract of the United States: 2002).

		Household Income ($1000s)
	Under	25.0-	50.0-		75.0-	100 or
Education Level	25	49.9	74.9		99.9	more	Total
Not H.S. Graduate	9,285	4,093		1,589	541	354	15,862
H.S. Graduate	10,150	9,821		6,050	2,737	2,028	30,786
Some College	6,011	8,221		5,813	3,215	3,120	26,380
Bachelor's Degree	2,138	3,985		3,952	2,698	4,748	17,521
Beyond Bach. Deg.	813	1,497		1,815	1,589	3,765	9,479
Total	28,397	27,617		19,219	10,780	14,015	100,028

a. Develop a joint probability table.

b. What is the probability of a head of household not being a high school graduate?

c. What is the probability of a head of household having a bachelor's degree or more education?

d. What is the probability of a household headed by someone with a bachelor's degree earning $100,000 or more?

e. What is the probability of a household having income below $25,000?

f. What is the probability of a household headed by someone with a bachelor's degree earning less than $25,000?

g. Is household income independent of educational level?