Question

A spinner has three congruent sectors colored orange, green, and purple.

Every spin has has 1/3 chance of landing on any color and there is 1/9 chance of landing on orange and then on purple.

There is 1/3 chance of landing on same color twice in a row.
I need to make a tree diagram verifying these answers and I don't know how to do it. Any help would be appreciated. Thanks!

Answer 1

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

Same color twice in a row = 1/3 * 1/3

http://www.google.com/search?client=safari&rls=en&q=tree+diagram&ie=UTF-8&oe=UTF-8

Answer 2

Jimmy is rolling a number cube labeled 1-6 and also spinning a 3-section spinner labeled red, yellow, and blue.
How many outcomes are possible
What are they? make a list
what is the probability of spinning yellow?
4. If Mary says she always rolls yellow with even numbers 80% of the time is she right or wrong? How do you know