The table below shows the number of marbles in a bag. if one marble is randomly selected from the bag what is the probability that it will be a red or a blue marble Color | number
blue 7
green 10
yellow 14
red 19

answer: 5

step-by-step explanation:

try soting them out first

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."