The task in the image asks for the mean (average) of the numbers $53, 56, 54, 57, 55$.

Solution:

1. Add the numbers together: $53 + 56 + 54 + 57 + 55 = 275$

2. Count the total numbers: There are 5 numbers in the set.

3. Divide the sum by the count: $\text{Mean} = \frac{275}{5} = 55$

Final Answer:

The mean (average) is 55.

Would you like further clarification or details?

Here are 5 follow-up questions to consider:

1. How is the mean affected by adding or removing numbers?
2. What happens to the mean if all the numbers increase by the same amount?
3. Can the mean represent the data if the values are widely spread?
4. How does the mean compare to the median in this dataset?
5. How can you calculate the mean for larger datasets efficiently?

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