Use polygon to estimate median

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Hi guys I really cannot figure out this, is it possible that the median is 150? Please help

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Guide:

Median is the height of which $50\%$ of people are shorter than that.

$50\%$ of $400$ people would be $200$ people.

Draw a horizontal line where the cumulative frequency is $200$, read off the value of height where the horizontal line intersect with the curve.

Remark: $150$ is not the answer.