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Data handling and analysis

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Question 19

The mean is one type of descriptive statistic.

Identify two other descriptive statistics that could be used to further analyse the data in Table 1. In each case, explain how the descriptive statistics you have identified could be calculated.

Table 1: Dissolved oxygen and salinity measurements for ten estuary water samples

Sample	Dissolved oxygen (mg/L)	Salinity (g/L)
A	5.2	12.5
B	4.8	15.1
C	6.1	10.2
D	5.2	14.8
E	3.9	18.3
F	7.0	8.4
G	5.2	13.1
H	4.5	16.2
I	3.1	20.5
J	5.0	14.8

[4]

Markscheme

Data handling and analysis Questions

A Level
Psychology
Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

Data handling and analysis

Question bank

Data handling and analysis

Easy Medium

Question 19

The mean is one type of descriptive statistic.

Table 1: Dissolved oxygen and salinity measurements for ten estuary water samples

Sample	Dissolved oxygen (mg/L)	Salinity (g/L)
A	5.2	12.5
B	4.8	15.1
C	6.1	10.2
D	5.2	14.8
E	3.9	18.3
F	7.0	8.4
G	5.2	13.1
H	4.5	16.2
I	3.1	20.5
J	5.0	14.8

[4]

Markscheme

Data handling and analysis Questions

A Level
Psychology
Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.