Question

We have provided simple data set for you to practices the basics of finding measures of center. For each data set determine the:

a) Mean

b)Median

c) Mode.

The given data set is:$2,5,0,-1$

Short answer

a) Mean$=1.5$

b) Median $=1$

C) Mode does not exist, because no value occurs more than once.

Step-by-step solution

Step 1. Given information.  

The given data is$2,5,0,-1$.

Step 2. Mean of the data. 

Mean$=\frac{Sumofobservation}{Numberofobservation}$

$$\begin{gathered} =\frac{2+5+0+\left(-1\right)}{4} \\ =1.5 \end{gathered}$$

Step 3. Median of the data. 

Arrange the data in increasing order $-1,0,2,5$.

The number of observation is $4$.

Median role="math" $=\frac{2ndterm+3rdterm}{2}$

$$\begin{gathered} =\frac{0+2}{2} \\ =\frac{2}{2} \\ =1 \end{gathered}$$

Step 4. Mode of the data. 

Mode does not exist, because no value occurs more than once.