TABLE 2-5
The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. 
-Referring to Table 2-5, what is the cumulative relative frequency for the percentage of calls that lasted 10 minutes or more?
Definitions:
Medical Insurance
A type of insurance coverage that pays for an individual's medical and surgical expenses incurred from illness or injury, or reimburses the insured for expenses incurred from such incidents.
Unemployment Taxes
Taxes imposed on employers, based on the amount of wages paid to employees, used to fund unemployment compensation programs.
Gross Wages
The total amount of salary or wages earned by an employee before any deductions or taxes are applied.
Social Security
A governmental program providing financial assistance to people with inadequate or no income, especially the elderly, disabled, and families with dependent children.
Q21: A female patient comes to the emergency
Q32: Referring to Table 4-1, what proportion of
Q34: The nurse is caring for a patient
Q50: Referring to Table 4-4, suppose a randomly
Q60: Referring to the histogram from Table 2-10,
Q75: The possible responses to the question "How
Q85: The width of each bar in a
Q95: Those methods involving the collection, presentation, and
Q114: Referring to Table 2-4, what percentage of
Q191: Referring to Table 2-13, if a percentage