9. The cost of 20 litres of petrol is £18 Work out the cost of 1 litre of petrol.
2 answers:
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Answer:
1. Five classes in the frequency distribution
2.The mid point of the third class is 24.5
3.The total number of frequency is 100
4.The relative frequency of the third class is (20/100=0.2)
5. We use n-1 because we are dealing with a sample data
6. The mean is 24.5
7. The value of the standard deviation is 11
Step-by-step explanation:
See attached picture for the solutions
Answer:
To see all the points that lie on the equation
h(x) = 3*x^2
We use a graphing calculator, to plot the function h(x)
Please see attached image for more information.
We can see in red all the points that lie on the function. There are an infinite number of points in it.
