In a frequency distribution, if the class intervals are 0-10, 10-20, 20-30, and
Practice Questions
Q1
In a frequency distribution, if the class intervals are 0-10, 10-20, 20-30, and the frequencies are 5, 10, 15 respectively, what is the mode?
10
20
30
None of the above
Questions & Step-by-Step Solutions
In a frequency distribution, if the class intervals are 0-10, 10-20, 20-30, and the frequencies are 5, 10, 15 respectively, what is the mode?
Step 1: Identify the class intervals and their corresponding frequencies. The intervals are 0-10, 10-20, and 20-30 with frequencies 5, 10, and 15 respectively.
Step 2: Compare the frequencies to find the highest one. The frequencies are 5 (for 0-10), 10 (for 10-20), and 15 (for 20-30).
Step 3: Determine which frequency is the highest. The highest frequency is 15, which corresponds to the class interval 20-30.
Step 4: Conclude that the modal class is the class interval with the highest frequency, which is 20-30.
