LSU EXAM 1: 2026 SPRING EXST 2201: MICHAEL MCKENNA (EQUATIONS ONLY UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

LSU EXAM 1: 2026 SPRING EXST 2201: MICHAEL
MCKENNA (EQUATIONS ONLY UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. In the frequency table of 160 data values shown below, what is the relative frequency for the category
Mar (March)? PICTURE
Answer:
0.1563




Question:
2. In the frequency table shown below, what are the cumulative frequency and the cumulative relative
frequency for the category Jun? PICTURE
Answer:
160 and 1.0




Question:
3. In the boxplot of continuous data shown below, what is the value of the first quartile, the median, and
the third quartile? PICTURE
Answer:
17.5, 27.5, 37.5.

,Question:
4. In the frequency table of 160 data values shown below, what is the frequency for the category May
(May)? PICTURE
Answer:
40.




Question:
5. In the stem-and-leaf plot for the 17 data values shown below, what is the data value that gives the circled
number four (4)? PICTURE
Answer:
84




Question:
6. In the boxplots of continuous data values shown below, what percent of the data values lie inside each
box, and what percent lie outside each box? PICTURE

, Answer:
50%, and 50%.




Question:
7. In the boxplot of continuous data shown below, what is the value of the mean, and the standard
deviation? PICTURE
Answer:
Not able to determine from this information.




Question:
8. What is the value of the sample average for the following six data values? 9 -1 3 8 0 2
Answer:
3.50

Question:
9. What is the value of the sample average for the following ten data values? 3 4 8 2 -8 2 -10 8 6 -4
Answer:
1.10

Question:
10. What is the sum of the deviations for the following five data values? 9 -1 4 6 2
Answer:
0

Question:
11. What is the sum of the squared deviations for the following five data values? This statistic is called the
sum-of-squares. 9 -1 4 6 2