Question: The director of career services at a large university is offering training on résumé construction. In an effort to present up-to-date information, using 23 résumés he just reviewed for a receptionist position in his office, he counts the total number of words used. Here are the data:
a. Create a grouped frequency table with four intervals.
b. Is this a random sample? Explain your answer.
c. What does this information tell people who come to his training on résumé construction?