NZ Level 6 (NZC) Level 1 (NCEA)
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Quartiles, Deciles and Percentiles

Interactive practice questions

Answer the following, given this set of scores:

$33,38,50,12,33,48,41$33,38,50,12,33,48,41

a

Sort the scores in ascending order.

b

Find the number of scores.

c

Find the median.

d

Find the first quartile of the set of scores.

e

Find the third quartile of the set of scores.

f

Find the interquartile range.

Easy
Approx 3 minutes
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Answer the following given this set of scores:

$13,15,5,16,7,20,12$13,15,5,16,7,20,12

The attached chart shows the range of heights for boys aged $2$2 to $18$18 years.

The attached chart shows the range of heights for girls aged $2$2 to $18$18 years.

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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