Question

If 18 percent of the beads in a bag are green, 25 percent are red and 40 percent are purple. What is the probablity of choosing a green bead then a red bead

Answer 1

`P(G\ then\ R)=0.045`

Explanation:

From the question we are told that:

Percentage of Green beads
`P_g=18`

Percentage of Red beads
`P_r=18`

Percentage of Purple beads
`P_p=18`

Therefore

Probability of choosing a Green bead is

`P(G)=0.18`

Probability of choosing a Red bead is

`P(R)=0.25`

Generally the equation for choosing a green bead then a red bead is mathematically given by

Since Outcomes are independent

`P(G\ then\ R)=0.18*0.25`

`P(G\ then\ R)=0.045`