B. Develop your educational and career plans.
The best scale and interval to adopt for the amount of Fluoride axis would be 0 to 8 with intervals of 0.2
To make a decision on the scale and interval to adopt when making a graph ;
- We need to examine the the range of the values in the distribution.
- Data for the amount of Fluoride ranges from 0.4 to 7.1
- The number of values in the distribution is 7.
- Lower scale value must be below the minimum Fluoride value preferably 0
- Maximum scale value must be above the maximum Fluoride value.
- Hence an interval of 0 to 8 would suit the axis.
- The interval is the value of each unit represented on the graph.
- A scale of 4 would be too large to depict all the 7 values with an interval of 8 units
- Hence, the most reasonable scale from the option would be 0.2 as it would allow the points to be properly spaced on the graph.
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Binet's intelligence test measures the level of knowledge and understanding taking into account the age of the subject, increasing the difficulty and level of abstraction of the tests with age.
<h3>What is Binet's intelligence test?</h3>
It is a standardized test that measures intelligence and cognitive abilities in children and adults.
This test conceives intellectual development as the progressive acquisition of basic intellectual mechanisms, in such a way that these the levels of knowledge and understanding must correspond to their chronological age.
Therefore, we can conclude that Binet's intelligence test measures intelligence or common sense (based on the ability to understand, judge and reason correctly) corresponding to the chronological age.
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3x- 4y=10
10÷1=10
Therefore y is equal to 10