Univariate Data
Hong Kong
Stage 4 - Stage 5
Mean, median mode and range (calculation from graphs and charts)
Interactive practice questions
Given the stem-and-leaf plot:
| Stem | Leaf | |
| $1$1 | ||
| $2$2 | $4$4 $9$9 | |
| $3$3 | $4$4 $4$4 $4$4 $9$9 | |
| $4$4 | $1$1 $9$9 | |
| $5$5 | $1$1 $8$8 $8$8 | |
| $6$6 | $2$2 $2$2 $9$9 | |
| $7$7 | $0$0 $9$9 | |
| $8$8 | $0$0 $9$9 $9$9 | |
| $9$9 | $4$4 | |
|
||
a
Find the mean from the stem-and-leaf plot. Round your answer to two decimal places.
b
Find the mode for the data provided in the stem-and-leaf plot.
c
Find the median.
d
What is the range of the scores?
Easy
5min
Find the mode from the histogram shown.
Easy
< 1min
Calculate the range from the bar chart.
Easy
< 1min
The stem and leaf plot below shows the age of people who enter through the gates of a concert in the first $5$5 seconds.
Easy
1min
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