Statistics Homework. Multiple choice, one answer.

5. Which of the following describes a qualitative variable? A. Height B. Number of questions answered correctly on an exam C. Length of time to complete an exam D. Hair color 6. A student at Fort Hays State University earned grades 88, 79, 80, and 84 on her four regular tests. She earned a grade of 81 on the final exam and 92 on her class project. Her combined homework grade was 91. The average of the four regular tests count for 40% of the final grade, the final exam counts for 30%, the project counts for 10%, and the homework counts for 20%. What is her weighted mean grade? (Round to one decimal place.) A. Mean = 85.0 B. Mean = 84.8 C. Mean = 84.0 D. Mean = 82.5