Recall from Example 1 that whenever Suzan sees a bag of marb

Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing four red marbles, three green ones, four white ones, and two purple ones. She grabs eight of them. Find the probability of the following event, expressing it as a fraction in lowest terms. HINT [See Example 1.]

She does not have all the green ones.

I have only one try left

Solution

total marbles = 4red+3green+4white+2purple =13 marbles

probability of grabbing 8marbles = 8/13=0.615

if she does not have green one then total marbles is = 13-3=10 marbles

therefore probability of grabbing 8 marbles is = 8/10=4/5=0.8