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9 votes
9 votes
(PLEASE HELP) Select the correct answer.

Yuri surveyed randomly selected middle school students in his neighborhood. He found that around 60% of them plan to participate in a charity walk organized by the town council. What is the estimated probability that it will take at least six middle school students to find one who doesn't plan to participate in the charity walk?

Use the table of simulated values to answer the question. The numbers 0 to 5 represent middle school students planning to participate in the charity walk, and 6 to 9 represent those who are not planning to participate.

7 1 0 7 8 8 8 5 3 0 3 0 0 5 7 3 8 5 4 6 5 6 6 4 2
9 3 0 7 7 9 2 5 4 4 5 4 0 2 8 4 8 3 9 8 4 0 0 8 1
4 4 4 1 4 7 0 2 7 3 8 9 3 9 8 5 2 4 7 6 7 6 1 7 1
9 3 4 7 2 4 5 4 3 2 2 6 6 2 6 3 8 5 3 2 7 5 9 6 2
9 5 4 2 7 1 5 7 1 1 8 8 4 4 1 1 0 2 0 4 5 0 5 1 6
5 1 3 0 6 8 3 3 1 6 2 0 6 9 5 3 1 5 4 2 6 2 5 6 9
7 0 8 4 9 5 8 0 0 1 6 6 2 2 4 8 1 8 7 9 4 4 8 7 7
9 6 7 8 7 2 8 6 0 8 1 0 4 6 8 1 8 3 1 7 2 2 4 2 6
6 0 7 0 2 3 6 4 3 0 1 8 2 5 7 5 5 5 1 8 3 8 9 7 7
5 6 7 2 5 8 4 3 5 1 7 8 6 0 5 6 1 9 3 6 3 1 1 0 5
A.
0.02
B.
0.10
C.
0.30
D.
0.60

User Jack Dalton
by
2.7k points

1 Answer

19 votes
19 votes

Answer:

The answer is C (0.30) are NOT going to particulate

Explanation:

We can find the answer by simply putting all of the results into order, which gives the following for the non-participants:

28: 6's

27: 7's

29: 8's

15: 9's

Now to find the answer, we must know the total amount of results, which I found to be 250. We also need to know the total amount of non-participants there are, which is 99. So if we take 99 and divide it by 250 (99/250); we get 0.396. Although this isn't the exact answer, it is the closest.

To further prove that this should be right, Yuri found 60% of students to participate, which leaves around 40% left to not participate. So this should be right.

Hope this helps! - SC

(Let me know if it's wrong so I can change my answer if needed).

User Victor Fazer
by
2.6k points