# The U.S. Census bureau serves as the leading source of quantitative data about the nation’s people and economy. The following cross-tabulation shows the number of households (1000s) and the household income by the highest level of education for the head of household only households in which the head has a high school diploma or more are included. Highest Level of Education Under $25,000$25,000 to $49,999$50,000 to $99,999$100,000 and Over Total High school graduate 9,880 9,970 9,441 3,482 32,773 Bachelor’s degree 2,484 4,164 7,666 7,817 22,131 Master’s degree 685 1,205 3,019 4,094 9,003 Doctoral degree 79 160 422 1,076 1,737 Total 13,128 15,499 20,548 16,469 65,644 1.Develop a joint probability 2.Is household income independent of educational level?

Question

The U.S. Census bureau serves as the leading source of quantitative data about the nation’s people and economy. The following cross-tabulation shows the number of households (1000s) and the household income by the highest level of education for the head of household only households in which the head has a high school diploma or more are included.

 Highest Level of Education Under $25,000$25,000 to $49,999$50,000 to $99,999$100,000 and Over Total High school graduate 9,880 9,970 9,441 3,482 32,773 Bachelor’s degree 2,484 4,164 7,666 7,817 22,131 Master’s degree 685 1,205 3,019 4,094 9,003 Doctoral degree 79 160 422 1,076 1,737 Total 13,128 15,499 20,548 16,469 65,644

1.Develop a joint probability

2.Is household income independent of educational level?