3. This question is for 3 and 4. From a barrel of colored marbles you randomly select 7 blue 5 yellow 8 red 4 green and 6 purples. Find the experimental probability of randomly selecting a marble that is not yellow.
1/30
5/6
2/15
1/6
4. Find the experimental probability selecting a marble that is either green or purple.
1/10
1/5
1/3
2/15
my answer 3- 1/30
4- 1/5
If I read your question correctly, you have drawn 30 marbles with the stated combination.
so the experimental prob of yellow = 5/30
= 1/6
so the prob of NOT yellow = 5/6
#4, how many of the 30 were either green or purple?
To find the experimental probability of randomly selecting a marble that is not yellow (question 3), you need to find the number of marbles that are not yellow and divide it by the total number of marbles.
To do this, add up the number of blue, red, green, and purple marbles: 7 + 8 + 4 + 6 = 25. This gives you the number of marbles that are not yellow.
Next, add up the total number of marbles: 7 + 5 + 8 + 4 + 6 = 30.
Now, divide the number of marbles that are not yellow by the total number of marbles: 25/30.
Simplifying the fraction, you get the experimental probability of 5/6.
Therefore, the answer to question 3 is 5/6.
For question 4, to find the experimental probability of selecting a marble that is either green or purple, you need to add up the number of green and purple marbles and divide it by the total number of marbles.
Adding up the number of green and purple marbles gives you: 4 + 6 = 10.
Then, divide the number of green and purple marbles by the total number of marbles: 10/30.
Simplifying the fraction, you get the experimental probability of 1/3.
Therefore, the answer to question 4 is 1/3.