Measure of central tendency.
The middle value after data has been ordered. EG: 1 2 3 4 5. If there are 2 numbers then add them and divide by 2. EG: 1 2 3 4 5 6 = 3 + 4 = 7 / 2 = 3.5
STRENGTHS
- Unaffected by extreme scores.
- Can be used on ranked data.
WEAKNESSES
- Doesn't work well on small sets of data - not representative.
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