Here is the frequency distribution based on the given data with a class size of 5 kg and 7 classes. The class boundaries are extended by 0.5 on either side:

Let me know if you'd like further details or explanations.

Here are 5 related questions to think about:

1. How would the distribution change if the class size were 10 kg instead of 5 kg?
2. Can we compute the relative frequencies and cumulative frequencies for this data?
3. What is the midpoint for each class interval?
4. How would you create a histogram based on this frequency distribution?
5. How can the frequency distribution help in understanding the central tendency and spread of the data?

Tip: Frequency distributions are useful for organizing large datasets into manageable groups, making it easier to see patterns and trends!