1- A study of 200 computer services firms revealed these incomes after taxes:
Income After Taxes Number of Firms
Under $1 million 102
$1 million up to $20 million 61
$20 million and more 37
What is the probability that a particular firm selected has $1 million or more in income after taxes?
2- Routine physical examinations are conducted annually as part of a health service program. It was discovered that 8% of the employees needed corrective shoes, 15% needed major dental work and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work?
3- A survey of top executives revealed that 35% of them regularly read Time magazine, 20% read Newsweek and 40% read U.S. News & World Report. Ten percent read both Time and U.S. News & World Report. What is the probability that a particular top executive reads either Time or U.S. News & World Report regularly?
4- There are 10 rolls of film in box and 3 are defective. 2 rolls are to be selected without replacement. What is the probability of selecting a defective roll followed by another defective roll?
5- Giorgio offers the person who purchases an 8 ounce of Allure twee free gifts, either an umbrella, a 1 ounce bottle of Midnight, a feminine shaving kit, a raincoat or a pair of rain boots. If you purchased Allure what is the probability you selected at random an umbrella and a shaving kit in that order?
6- A board of directors consists of 8 men and 4 women. A four-member search committee is to be chosen at random to recommend a new company president. What is the probability that all 4 members of the search committee will be women?