I need help with 3 and 4

Mathematics

2 answers:

tiny-mole [99]3 years ago

8 0

3)21.5 (rounded)
4)15.2(rounded)

inn [45]3 years ago

3 0

Simply divide the whole by the two HCF, Such as 5 and 3, and 7 and 3.

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tiny-mole [99]

We have a sample that in fact represents the population.

We have to calculate the standard deviation of this population.

The difference between the standard deviation of a population comparing it to the calculation of the standard deviation of a sample is that we divide by the population side n instead of (n-1).

We have to start by calculating the mean of the population first:

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Now, we can calculate the standard deviation as:

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