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CanadaON
Grade 12

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
 
Key: $1$1$\mid$$2$2$=$=$12$12 
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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Outcomes

12D.D.1.1

Recognize that the analysis of one-variable data involves the frequencies associated with one attribute, and determine, using technology, the relevant numerical summaries

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