High School

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18 pupils each took a Physics

test and a Chemistry test.

Both tests were out of a

maximum of 30 marks.

The results of these pupils are

shown on the scatter diagram

below.

18 pupils each took a Physics test and a Chemistry test Both tests were out of a maximum of 30 marks The results of these

Answer :

The fraction of the pupils that scored maximum in chemistry test is: 1/10

What is the fraction in the scatterplot?

A scatter plot, also known as a scatterplot, scatter graph, or scatter diagram, is a type of plot using Cartesian coordinates to display values for typically two variables. It is used to identify the type of relationship between two quantitative variables.

We are given:

Total number of pupils that took a test = 18

Maximum score of test = 30

From the scatterplot, we see that only 3 students scored the maximum of 30 marks in the chemistry test.

Thus, the fraction of the pupils that scored maximum in chemistry test is:

3/30 = 1/10

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