Frequency distributions
Descriptive statistics · Mathematics
Study notes
Q: Marks of 20 students: 5,8,8,6,5,7,8,9,6,5,7,7,8,6,9,5,6,7,8,7. Make a frequency table. Count each: 5 appears 4 times, 6 appears 4 times, 7 appears 5 times, 8 appears 5 times, 9 appears 2 times. Table: Marks | Tally | Frequency: 5|4, 6|4, 7|5, 8|5, 9|2. Total = 20. Check: 4+4+5+5+2 = 20!