Question

Price
Frequency
$11
1
$14
$17
TL 111
$20
What is the mean price per item for the catalog items
​

Answer 1

Given :

Price   Frequency

$11           I

$14         $\setlength{\unitlength}{0.5cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$

$17         $\setlength{\unitlength}{0.5cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$ |||

$20        ||||

To Find : mean price per item

Solution:

Price x   Frequency   f          xf

$11           I                1             11

$14         $\setlength{\unitlength}{0.5cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$             5            70

$17         $\setlength{\unitlength}{0.5cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$ |||         8            136

$20        ||||              4            80

            Total          18           297

mean price per item for the catalog items  = 297/18

= 16.5  $

mean price per item for the catalog items is $ 16.5

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