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7.025 Organise and display data

Interactive practice questions

The set of marks for a class of students is given below:

$92,58,69,58,58,81,58,76,76,76$92,58,69,58,58,81,58,76,76,76

a

Organise the data into a frequency table.

Score Frequency
$58$58 $\editable{}$
$69$69 $\editable{}$
$76$76 $\editable{}$
$81$81 $\editable{}$
$92$92 $\editable{}$
b

How many students are there in the class?

c

How many students will get a Distinction grade (scores above $80$80 but less than or equal to $90$90)?

d

How many students will get a High Distinction grade (scores above $90$90)?

e

What portion of students obtained a High Distinction grade?

Easy
3min

The following frequency table shows the data distribution for the length of leaves collected from a species of tree in the botanical gardens.

Easy
1min

What would be the most appropriate way of representing data from:

Easy
< 1min

The time spent by patients waiting at a doctor’s office was recorded over one week. The results are shown in the frequency table below.

Easy
3min
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Outcomes

ACMGM029

with the aid of an appropriate graphical display (chosen from dot plot, stem plot, bar chart or histogram), describe the distribution of a numerical dataset in terms of modality (uni or multimodal), shape (symmetric versus positively or negatively skewed), location and spread and outliers, and interpret this information in the context of the data

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