JEFF: Putter's under pressure, Janine. He needs to turn this around quick.
JANINE: He sure does, Jeff. Let's look at how the other player scored on this hole.
JEFF: Let’s start with the ‘mean’ score.
JANINE: No need to get nasty, Jeff.
JEFF: No no, the ‘mean’ is the average score. We take all the scores then divide it with the number of people. So the average is 25 shots.
JANINE: That’s a bit high.
JEFF: Ah yes, that’s because Louis got a really high score.
JANINE: How about we check the ‘mode’ instead.
JEFF: Good thinking, Janine. Let’s order them and then see which occurs most often.
Which is three.
JANINE: We can even find the ‘median,' Jeff. Just look at our ordered scores and it’s the one right in the middle, which is six!
JEFF: And there’s a huge range too, Janine. If we subtract the lowest score from the highest score, that’s a massive 97 shot range.
JANINE: Oh, looks like Putter's time is up.
GOLFER: Ohhhhh!
The median is the middle value.
- To find the median, order the numbers and see which one is in the middle of the list.
- Eg 3, 3, 6, 13, 100 = 6
- The median is 6.
If there are two middle values the median is halfway between them. This might not be a whole number.
The mode is the number that appears the most.
- To find the mode, order the numbers lowest to highest and see which number appears the most often.
- Eg 3, 3, 6, 13, 100 = 3
- The mode is 3.
The mean is the total of the numbers divided by how many numbers there are.
- To find the mean, add all the numbers together then divide by the number of numbers.
- Eg 6 + 3 + 100 + 3 + 13 = 125 ÷ 5 = 25
- The mean is 25.
The mean is not always a whole number.
The range is the difference between the biggest and the smallest number.
- To find the range, subtract the lowest number from the biggest number.
- Eg 100 - 3 = 97
- The range is 97.
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