Find the mean of the whole numbers from 1 to 250. Express your answer as a decimal to the nearest tenth.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the mean of the whole numbers from 1 to 250. Express your answer as a decimal to the nearest tenth.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
125.5
Find the mean of the whole numbers from 1 to 250. Express your answer as a decimal to the nearest tenth.
train