Question

The average number of cigarettes smoke per person in a year in the top 10 countries for smoking are shown next.

Answer 1

To find the measures of central tendency; first we rearrange the data as follows:

2061 - 2213 - 2315 - 2551 - 2765 - 2865 - 2973 - 3065 - 3285 - 4363

• Mean:

`\begin{gathered} Mean=\frac{Sum\text{ }of\text{ }all\text{ }data}{Number\text{ }of\text{ }data} \\ \\ Mean=(28456)/(10) \end{gathered}`

Mean = 2845.6

Median:

`\begin{gathered} Median=(2765+2865)/(2) \\ \\ Median=(5630)/(2) \end{gathered}`

Median = 2815

• Mode: None of the data is repeated. If no number is repeated within the data set, we say that ,the mode does not exist.

• Midrange:

`\begin{gathered} Midrange=\frac{Highest\text{ }value+Lowest\text{ }value}{2} \\ \\ Midrange=(4363+2061)/(2) \\ \\ Midrange=(6424)/(2) \end{gathered}`

Midrange = 3212