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Date November 2016 Marks available 3 Reference code 16N.1.SL.TZ0.T_2
Level Standard Level Paper Paper 1 Time zone Time zone 0
Command term Draw Question number T_2 Adapted from N/A

Question

A sample of 120 oranges was tested for Vitamin C content. The cumulative frequency curve below represents the Vitamin C content, in milligrams, of these oranges.

N16/5/MATSD/SP1/ENG/TZ0/02

The minimum level of Vitamin C content of an orange in the sample was 30.1 milligrams. The maximum level of Vitamin C content of an orange in the sample was 35.0 milligrams.

Draw a box-and-whisker diagram on the grid below to represent the Vitamin C content, in milligrams, for this sample.

N16/5/MATSD/SP1/ENG/TZ0/02.b

Markscheme

N16/5/MATSD/SP1/ENG/TZ0/02.b/M

Note:     Award (A1)(ft) for correct median, (A1)(ft) for correct quartiles and box, (A1) for correct end points of whiskers and straight whiskers.

Award at most (A1)(A1)(A0) if a horizontal line goes right through the box or if the whiskers are not well aligned with the midpoint of the box.

Follow through from part (a).

 

[3 marks]

Examiners report

[N/A]

Syllabus sections

Topic 4—Statistics and probability » SL 4.2—Histograms, CF graphs, box plots
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Topic 4—Statistics and probability » SL 4.3—Mean, median, mode. Mean of grouped data, standard deviation. Quartiles, IQR
Topic 4—Statistics and probability

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