Mini Plate

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How to Make Polymer Clay Dishes- Miniature Plate Bowl Platter Garden of Imagination

Frequently Asked Questions...

I am having a hard time with the probability problems this is a example prior to my test and I am lost?

A mini license plate for a toy car must consist of a number followed by a "t" and a vowel. each number must be 3,6,9
1. use the counting principle to determine the number of points in the sample space
2.construct a tree diagram
3. list the sample space
4.determine the exact prob of creating a mini plate with an "e"

Best Answer...


Your plate must start with either 3,6 or 9
Your plate then has a t
Your plate finishes with a vowel [either A, E, I, O or U]
So an example plate is 3tO

For the sample space you have three options for the first character, one option for the second character, and five options for the final character
Number in sample space = 3 * 1 * 5 = 15

Your tree has three branches at the top and five branches hanging off each of those three
3 - A
3 - E
3 - I
3 - O
3 - U
... repeat for 6 and 9

Sample space = { 3tA ; 3tE ; 3tI ; 3tO ; 3tU ; 6tA ; 6tE ; 6tI ; 6tO ; 6tU ; 9tA ; 9tE ; 9tI ; 9tO ; 9tU }

Creating a plate with an E? There are three options within your sample space of a plate having an E, those are 3tE, 6tE and 9tE.
P(plate contains an E) = 3 / 15 = 1/5