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anonymous
 one year ago
You have a 5question multiplechoice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly? Type your answer below using complete sentences.
anonymous
 one year ago
You have a 5question multiplechoice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly? Type your answer below using complete sentences.

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.0binomial should work for this one

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0what is the probability you get any one question right?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0if you do not know, say so and i can tell you hint, there are 4 possible answers, only one is right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I really don't know..

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0one is right, out of four ratio is \(\frac{1}{4}\) i.e. the probability you get any one answer correct is \(\frac{1}{4}\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0you also need the probability you get any one answer incorrect you know that?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438222812257:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0yes it is \(\frac{3}{4}\) for wrong answers

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0now you want 3 out of 5, so 3 right, 2 wrong

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0probabiliy of getting any one answer right is \(\frac{1}{4}\) and you want 3 right so \((\frac{1}{4})^3\) also 2 wrong, so \((\frac{3}{4})^2\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0then then multiply by the number of ways to choose 3 out of 5 that is called "five choose three" sometimes written as \[\_5C_3\] or more commonly \[\binom{5}{3}\] and computed via \[\binom{5}{3}=\frac{5\times 4}{2}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.0final answer is \[10\times \left(\frac{1}{4}\right)^3\times \left(\frac{3}{4}\right)^2\] use a calculator

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don''t know i didn't do it hold on
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