The outlier in the given data set and the reason we know it is an outlier are;
<u><em>The outlier is 9.8</em></u>
<em><u>It is an outlier because it is the distance that is less than 10.</u></em>
Outliers in mathematics are simply values that lie outside of the other values in a set of data. This means they are far larger than the given set of values or far smaller than the given set of values.
Now, in this question, we see that the distances given in meters are;
10.1 m, 10.1 m, 10.2 m, 10.2 m, 10.3 m, 10.1 m, 10.2 m, 9.8 m
From these set of data values, we can see that all but 1 of the values are more than 10. This number that is less than 10 is the odd one out of these set of data values and therefore it is the outlier.
The unknown scale factor above is calculated by dividing the true value of the length of the banner by the length in the photograph. If we take the first dimension that is 8 inches only in photograph but 12 feet in the banner. scale factor = (12 ft)(12 inches/ 1 ft) ÷ 8 inches scale factor = 18 Therefore, the scale factor is 18:1. The answer to this item is letter D.
