MA3 Test 1 Revision 2025

What kind of data is the country of residence of overseas students?

• quantitative: continuous

• quantitative: discrete

• categorical: ordinal

• categorical: nominal

• None of the above

Find the median of the data in this table.

• 19

• 19.5

• 20

• 20.5

• 21

Find the interquartile range of the numbers in the stem-and-leaf plot below.

• 18

• 18.5

• 19

• 19.5

• 20

The following histogram represents the percentage marks some students got on a General Maths exam.

How many students scored from 30% to 60%?

• 7

• 8

• 12

• 13

• 17

For the given box-and-whisker plot, state the median and the interquartile range of the data set.

• 4 and 6

• 4 and 10

• 6 and 13

• 9 and 6

• 9 and 13

Which of the following would be an outlier if it appeared in this set of data? 

296,  188,  183,  272,  233,  161,  254,  193,  175,  167,  161,  183

• 66

• 68

• 341

• 345

• 356

How would you describe the distribution of the following data?

• Positively skewed

• Negatively skewed

• Symmetric

• Bimodal

• There is an outlier.

Which of these is the explanatory variable?

• plant yield

• amount of fertiliser

What percentage of plants which used fertiliser B produced over 40 tomatoes?

(Round your answer)

• 3%

• 5%

• 12%

• 18%

• 20%

The effects of an advertising campaign on the sales of two stores is recorded in the percentage two-way table below.

Use this to construct a segmented column graph comparing the three stores.

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