Exactly. 15 is C (8 in advanced). The people who selected D honestly deserved to get it wrong for trying to be a "smartass". Like I'm pretty sure question 15 (question 8 for advanced) is an iq question. If you got that wrong, your iq is definitely below 100 (no offense). IQ questions normally ask you to find the odd one out just like this. I hope NESA doesn't award the people who selected D, it's clearly possible the boxplot can look like that. Legit I just spent 30 minutes making data sets based of this and I could literally sketch a full fledged normally distributed box and whisker plot.
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