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ahaug4869
28.01.2021 •
Mathematics
Casey ran out of time while taking a multiple-choice test and plans to guess on the last 101010 questions. Each question has 555 possible choices, one of which is correct. Let X=X=X, equals the number of answers Casey correctly guesses in the last 101010 questions. Which of the following would find P(X=2)P(X=2)P, left parenthesis, X, equals, 2, right parenthesis?
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Ответ:
P(X=2)=
(10/2) (1/5)^2 (4/8)^8
Step-by-step explanation:
This has the correct binomial coefficient for 2 successes in 10 trials, the correct probabilities for success and failure, and the correct exponents for the number of successes and failures.
Ответ:
A
Step-by-step explanation:
If five feet is that big then the person must be smaller than that.
(Had to bust out the ruler for that one lol)