NZ Level 6 (NZC) Level 1 (NCEA)
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Shape of data

Interactive practice questions

State whether the scores in each histogram are positively skewed, negatively skewed or symmetrical (approximately).

a

ScoreFrequency510891011121314151617

Positively skewed

A

Symmetrical

B

Negatively skewed

C

Positively skewed

A

Symmetrical

B

Negatively skewed

C
b

ScoreFrequency510891011121314151617

Positively skewed

A

Negatively skewed

B

Symmetrical

C

Positively skewed

A

Negatively skewed

B

Symmetrical

C
c

ScoreFrequency510891011121314151617

Negatively skewed

A

Symmetrical

B

Positively skewed

C

Negatively skewed

A

Symmetrical

B

Positively skewed

C
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Answer the following:

For the Stem and Leaf plot attached:

The number of hours worked per week by a group of people is represented in the following Stem and Leaf Plot:

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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