Descriptive Statistics

label Statistics
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Sep 8th, 2015

Thanks for letting me help you out!

When you are dealing with relative frequencies, you are wondering about comparing percentages of a total. In this question you have 20 total weeks. You want to know how many times you sold a certain number of kitchen appliances how often compared to the total number of weeks.

The company sold 6-10 rice cookers in only 1 of the weeks. You take that number and divide by the total number of weeks. 1/20=0.05 or 5%

It sold 11-15 rice cookers 10 out of 20 total weeks. 10/20=.50 or 50%

It sold 16-20 cookers 9 out of 20 total weeks. 9/20=0.45 or 45%

Now that you know all the relative frequencies all you need to do is graph it. Use the x axis (bottom horizontal) for number of items sold. You should have three sections. The first label 6-10, second is 11-15, and last is 16-20.

On the y axis (vertical, up down) you should label it as percentages. Label each increment of percentages as you go up. I divided my graph by 10% each time.

Finally, plot each of your values like a bar graph. The 6-10 column should be shaded up to the 5% mark, the 11-15 column should be shaded to 50%, and the 16-20 column should be shaded up to 45%

Also, make sure to give a label at the top which every graph should have!

Here's my crude drawing of what it should look like in general. You of course should make it look a little cleaner.


Let me know if you need anything else or any more clarification. Thank you!
Sep 8th, 2015

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