Suppose the results happen for the first 20 students that play that spin the spinner. To win spin: yellow and green

To lose spin: red and blue

a) what is the experimental probability or winning

b) what is the experimental probability of losing?

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."