A study was conducted among a group of 100 college students to understand their weekly
study habits. Each student was asked how many hours they dedicated to studying and
coursework outside of class over the past week. The dataset represents the number of study
hours reported by each student.
This information is valuable for gaining insights into students' study patterns,
understanding the average amount of time students devote to self-study, and identifying
any trends in the distribution of study hours. The data can help us explore if most students
are following recommended study hours or if there are significant variations across the
group. This could further assist in academic support planning, enabling the college to
encourage effective study habits:
25, 18, 22, 34, 28, 17, 24, 30, 21, 19, 27, 35, 16, 29, 20, 18, 24, 26, 23, 32,
22, 28, 18, 33, 30, 21, 20, 19, 25, 17, 26, 27, 29, 24, 31, 18, 32, 19, 20, 30,
23, 27, 33, 16, 25, 28, 31, 22, 21, 34, 29, 25, 24, 30, 19, 20, 17, 23, 21, 35,
18, 22, 19, 16, 32, 27, 33, 26, 21, 24, 25, 29, 30, 19, 20, 28, 22, 23, 34, 17,
20, 31, 19, 26, 21, 18, 24, 27, 25, 30, 32, 21, 33, 18, 28, 29, 23, 19, 31, 20
Questions
1. Frequency Distribution Table
• Construct a frequency distribution table with an interval of 5 (e.g., 15-20, 20-25,
etc.) using the dataset above.
2. Graphical Representation
Using the frequency distribution table from Question 1, create the following:
• A histogram.
• An ogive curve (cumulative frequency curve).
3. Measures of Central Tendency
Calculate the following using the frequency distribution table:
• Using the ogive curve from question 2, find the median graphically.
• Mode.
4. Quartiles, Deciles and Percentiles
Calculate and interpret the following using the frequency distribution table:
• First quartile.
• 8
th decile.
• 70
th percentile
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