Question

This table gives information about the colors and engine types of motorcycles sold at a showroom in a month.


150 cc 180 cc

Black 18 24

Blue 15 17

Red 26 21


Identify the tables that represent the relative frequencies of this data either by row or by column. Round your answers to the nearest hundredth

Answer 1

The relative frequencies of this data by row is

          150 cc    180 cc

Black 0.43         0.57

Blue   0.47         0.53

Red   0.55          0.45

How to determine the relative frequency table?

The table of values is given as:

          150 cc    180 cc

Black 18              24

Blue   15              17

Red   26              21

Calculate the row total.

          150 cc    180 cc    Total

Black 18              24          42

Blue   15              17           32

Red   26              21           47

Divide each element by the row total

          150 cc    180 cc

Black 0.43         0.57

Blue   0.47         0.53

Red   0.55          0.45

Hence, the relative frequencies of this data by row is

          150 cc    180 cc

Black 0.43         0.57

Blue   0.47         0.53

Red   0.55          0.45

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