Luttrell 2012
147
Basic Statistics
& Probability
Final Exam 7, 8, 9, 10
Use the following test scores to answer the questions #14 to #16:
61 65 68 71 71 73 77 78 78 82 82 82 87 89 91 91 95 98.
15. Construct a stem-and-leaf plot.
16. What is the mode? The median? The mean?
17. Create a histogram, labeling the axes.
18. The class has 3 boys and 5 girls. What is your chance of randomly picking a boy’s name
from the list?
19. There are 4 pants (beige, blue, green, black) and 2 matching shirts (white, yellow). How
many ways can you match a pants with a shirt? Write out the combinations if you must.
Bonus (2 pts): A class average on an exam is 85 where the boys in the class averaged 90. The
class of eight students has only three boys. What is the girls’ average?