Based on the data, can you conclude that the majority of the signers were 30–49 years old? explain your reasoning. 15. rotate the stem-and-leaf plot 90° counterclockwise. without drawing a histogram, predict the heights of each interval of the histogram that would display the same data.

Which of the following statements is false? a. a class can directly inherit from class object. b. if the class you're inheriting from declares instance variables as private, the inherited class can access those instance variables directly. c. a class's instance variables are normally declared private to enforce good software engineering. d. it's often much more efficient to create a class by inheriting from a similar class than to create the class by writing every line of code the new class requires.