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anonymous
 one year ago
Toss 3 fair coins and let x equal the number of heads observed.
a. Identify the sample points associated with this experiment and assign a value of x to each sample point
b. Calculate p(x) for each value of x
c. Construct a probability histogram for p(x)
d. What is P(x = 2 or x = 3)?
anonymous
 one year ago
Toss 3 fair coins and let x equal the number of heads observed. a. Identify the sample points associated with this experiment and assign a value of x to each sample point b. Calculate p(x) for each value of x c. Construct a probability histogram for p(x) d. What is P(x = 2 or x = 3)?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well, \(X\) can be from \(0\) to \(3\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0There are \(2^3=8\) possible outcomes. There is \(1\) outcome for \(X=0\), \(3\) for \(X=1\), \(3\) for \(X=2\), and \(1\) for \(X=3\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hi Wio, thanks for helping. I'm not sure how to approach this problem. I understand the 2^2 = 8 part. I think we need to make a tree for this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0By tree, do you mean pascal's triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Actually, do we just list it out like this? HHH HTH HTT HHT THH TTH THT TTT those are the sample points, correct?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok, so each of those are X?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0P(1) = 3/8 p(2) = 4/8 p(3) = 1/8 am I doing this correctly?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, and your \(p(2)\) is wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you, i think i can solve the rest
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