Manufacturing company

A random sample of 8 manufacturing companies is selected from a population of manufacturing companies. The market values (in millions of rands) of these eight manufacturing companies are:

17 65 117 206 172 181 221 94

What is the lowest and highest market value?
Find the mean.
Draw the box and whisker plot (show all calculations)
Calculate the median.

Correct answer:

a =  17
b =  221
m =  134.125
m₂ =  144.5

Step-by-step explanation:

$$\begin{gathered} 176511720617218122194 \\ sort:17,65,94,117,172,181,206,221 \\ a=17 \end{gathered}$$

$b=221$

$m=\frac{17+65+94+117+172+181+206+221}{8}=\frac{1073}{8}=134\frac{1}{8}=134.125$

$m_2=\frac{117+172}{2}=\frac{289}{2}=144\frac{1}{2}=144.5$

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