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Could you please explain the answer? Why not on October 16? Thank you
Sure!

1. The problem asks us to find the day the difference between high price and low price was maximum.

2. The high price on a candle stick is located on the upper shadow (very top) and the low price is located on the lower shadow (very bottom).

3. Now let's look at the candlesticks on October 12th and 16th. October 12th has a high at around $37 and a low at $32. This makes a difference of about $5. October 16th has a high at around $36 and a low at $32. This makes a difference of $4.

4. $5 is more than $4, so October 12th has a larger difference than October 16th.

Hope that helped!
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