Thursday, March 11, 2010

The Jelly Bean Proportion...

So its nearing Easter time and time for fun colorful easter candy at my desk. My favorite candy to get is Brach's Spiced Jelly Bird Eggs. Really I like these for one reason: the purple clove-flavored Jelly Beans - they're awesome! Sadly it seems everytime I get a bag there seems to be only about 5 purple - very dissapointing. So today - during an hour break, I decided to investigate this with the two unopened bags of Jelly Beans in my drawer. With the help of one of my coworks I sorted and counted the JellyBeans. With some help from Excel, the findings were:


Bag 1 Bag 2
Freq Rel Freq Freq Rel Freq
Black 24 13.48% 34 18.99%
Green 25 14.04% 25 13.97%
White 36 20.22% 29 16.20%
Red 30 16.85% 29 16.20%
Purple 8 4.49% 7 3.91%
Pink 26 14.61% 24 13.41%
Orange 29 16.29% 31 17.32%
178 179

I was right! The purple were way disproportionately low in proportion compared to the other colors. I'm considering writing to Branch's and complaining. Maybe I'll wait til I have a few more bags to add to my sample size first, and have my Statistics students run some z-test for me ^^. Perhaps I spend to much time during the day doing math ><


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