To determine if Walter's estimation that \( \sqrt{13} \) is between 3.61 and 3.62 is correct, we first need to calculate the squares of 3.61 and 3.62:
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Calculate \( 3.61^2 \): \[ 3.61^2 = 12.9921 \]
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Calculate \( 3.62^2 \): \[ 3.62^2 = 13.0644 \]
Now, we compare these values to 13:
- \( 3.61^2 = 12.9921 \) (which is less than 13)
- \( 3.62^2 = 13.0644 \) (which is greater than 13)
This means that \( \sqrt{13} \) indeed lies between 3.61 and 3.62.
Thus, Walter is correct in his estimation.
The correct response is: Yes, Walter is correct.