Question

The following data showed a classroom material cost in dollars for a random sample of student at irs and round solution to decimal places

Answer 1

First, to compute the mean value we use the following formula:

$\begin{gathered} mv=\frac{110+195+285+95+65+140+15+270+75+250+90+185+215+260+255}{15} \\ mv=\frac{2505}{15} \end{gathered}$

The mean is 167.

To find the median we order the numbers from lowest to highest: 15, 65, 75, 90, 95, 110, 140, 185, 195, 215, 250, 255, 260, 270, 285.

The median of the data set is 185.

Finally, notice that no number is repeated so there is no mode. The answer is DNE.