The stem plot below shows the height, in centimetres, of 20 players in a junior football team.
A player with a height of 179 cm is considered an outlier because 179 cm is greater than
- 162 cm
- 169 cm
- 173 cm
- 175.5 cm
Statistics, STD2 S1 2005 HSC 24a
- Draw a stem-and-leaf plot for the following set of scores.
-
`21\ \ \ 45\ \ \ 29\ \ \ 27\ \ \ 19\ \ \ 35\ \ \ 23\ \ \ 58\ \ \ 34\ \ \ 27` (2 marks)
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- What is the median of the set of scores? (1 mark)
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- Comment on the skewness of the set of scores. (1 mark)
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Show Answers Only
-
- `28`
- `text(The data has a tail that stretches to the right)`
-
`:.\ text(Data is positively Skewed.)`
Show Worked Solution
| i. |  |
ii. `text(10 scores)`
| `:.\ text(Median)` | `= text{(5th + 6th)}/2` |
| `= (27 + 29)/2` | |
| `= 28` |
iii. `text(The data has a tail that stretches to the right)`
`:.\ text(Data is positively skewed.)`
Statistics, STD2 S1 2006 HSC 4 MC
A set of scores is displayed in a stem-and-leaf plot.
What is the median of this set of scores?
- 28
- 30
- 33
- 47
Statistics, STD2 S1 2008 HSC 3 MC
The stem-and-leaf plot represents the daily sales of soft drink from a vending machine.
| If the range of sales is 43, what is the value of |  |
? |
- `4`
- `5`
- `24`
- `25`
Statistics, STD2 S1 2009 HSC 24a
The diagram below shows a stem-and-leaf plot for 22 scores.
- What is the mode for this data? (1 mark)
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- What is the median for this data? (1 mark)
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Statistics, STD2 S1 2012 HSC 1 MC
A set of 15 scores is displayed in a stem-and-leaf plot.
What is the median of these scores?
- 7
- 8
- 77
- 78