Find the mean of the data set

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The mean of a data set is equal to the sum of the set of

numbers divided by how many numbers are in the set.

So to find the mean of the data set shown here,

let's begin by adding the numbers.

So we have .

This will be divided by how many numbers are in the set, which is 10.

So we have .

Adding the number, we get 176.

176 is divided by the number of numbers in the set or 10.

So we have .

176 divided by 10 is equal to 17.6.

So the mean of the set of data shown here is 17.6.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.