Bivariate Data

NZ Level 5

Comparing Sets of Data

The test scores of 12 students in Music and French are listed below.

Music: $79,59,74,94,51,71,93,84,69,61,86,86$79,59,74,94,51,71,93,84,69,61,86,86

French: $62,71,64,82,83,99,87,89,66,73,59,76$62,71,64,82,83,99,87,89,66,73,59,76

Display the data as an ordered stem-and-leaf plot.

French | Music | |

$\editable{}$ | $5$5 | $\editable{}$ $\editable{}$ |

$\editable{}$ $\editable{}$ $\editable{}$ | $6$6 | $\editable{}$ $\editable{}$ |

$\editable{}$ $\editable{}$ $\editable{}$ | $7$7 | $\editable{}$ $\editable{}$ $\editable{}$ |

$\editable{}$ $\editable{}$ $\editable{}$ $\editable{}$ | $8$8 | $\editable{}$ $\editable{}$ $\editable{}$ |

$\editable{}$ | $9$9 | $\editable{}$ $\editable{}$ |

Easy

Approx 3 minutes

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Plan and conduct surveys and experiments using the statistical enquiry cycle:– determining appropriate variables and measures;– considering sources of variation;– gathering and cleaning data;– using multiple displays, and re-categorising data to find patterns, variations, relationships, and trends in multivariate data sets;– comparing sample distributions visually, using measures of centre, spread, and proportion;– presenting a report of findings