Professor White asked his students to put the number of hours each studied for the final exam on a piece of paper and turn that paper in with the exam. The pieces of paper indicate that students studied 10, 3, 4, 25, 1, 4, 4, 12, 6, 8, and 10 hours. What is the modal number of hours studied?
http://www.mathsisfun.com/mode.html
What is your answer?
7.9
To find the modal number of hours studied, we need to determine the number that appears most frequently in the given set of hours: 10, 3, 4, 25, 1, 4, 4, 12, 6, 8, and 10.
One way to find the modal number is to create a tally chart. For each distinct number, tally how many times it appears. Then, find the number with the highest frequency.
Tally Chart:
10: ||
3: |
4: |||
25: |
1: |
12: |
6: |
8: |
From the tally chart, we can see that the numbers 10 and 4 both appeared three times, which is the highest frequency. Therefore, the modal number of hours studied in this case is 10 and 4.
Alternatively, you can also use programming or spreadsheet software to find the modal number quickly. By entering the data into a program or spreadsheet, you can sort the numbers and find the one with the highest frequency.