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Algebra Difficulty 1.3 Junior Find the answer Canada

When $x=2$ , the value of $3^x-x^3$ is

Pick one

Solution

The number of visits to Ben’s website from Monday to Friday can be read from the graph.

These are: $300,400, 300, 200, 200$ .

The mean number of visits per day is found by adding these five totals and then dividing the sum by 5.

Thus, the mean is $(300+400+300+200+200)\div5=1400\div5$ or 280.
The mean number of visits per day to Ben’s website over the 5 days is between 200 and 300.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.