Topics
Univariate Data
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New Zealand
Level 6 - NCEA Level 1

Centre or Spread ?

Lesson
Practice

Interactive practice questions

The two dot plots below represent the scores of students from two classes in the most recent grade test.

 

a

Without performing any calculations, which class has the greater MAD?

Class A

A

Class B

B
b

If a student scored below their class average, in which class would they prefer to be?

Class A

A

Class B

B
Easy
< 1min

Consider the distribution of the data presented in this histogram.

Which of the following statements is true?

Easy
< 1min

In an entrance exam, applicants completed two papers.

On average, students performed better in Paper $1$1, but their marks were less spread out from the mean in Paper $2$2. The MAD of Paper $2$2 could be:

Easy
< 1min

Concerned that his heart rate was irregular, Derek’s doctor measured his heart rate (in beats per minute) $6$6 separate times in the space of an hour. They were:

$82,95,90,95,81,94$82,95,90,95,81,94

Easy
2min
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Outcomes

S6-1

Plan and conduct investigations using the statistical enquiry cycle: A justifying the variables and measures used B managing sources of variation, including through the use of random sampling C identifying and communicating features in context (trends, relationships between variables, and differences within and between distributions), using multiple displays D making informal inferences about populations from sample data E justifying findings, using displays and measures.

91035

Investigate a given multivariate data set using the statistical enquiry cycle

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