Mathematics, 07.10.2019 18:00, austinmiller3030
In a test, for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a square, or a cross. as the experimenter looks at each of 10 cards in turn, the subject names the shape on each card. the experimenter then reveals the hidden card. if a subject simply guesses the shape on each card, what, is the probability of a successful guess on a single card? suppose the experimenter is drawing cards from a deck of only 10 cards, with exactly 2 cards with each shape. the subject also knows the makeup of the deck. why is the binomial distribution not a good model for this study? now suppose that the cards are drawn from a very large, fully shuffled deck of cards, so the trials may now be assumed to be independent. a binomial distribution with 10 trials is a good model for this distribution. what is the chance that the subject (who is guessing) guesses at least 5 shapes correctly? in many repetitions of this study, for a subject who is guessing, how many cards will he guess correctly on the average? what is the standard deviation of the number of correct guesses?
Answers: 2
Mathematics, 21.06.2019 17:30, hwhite41
Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.
Answers: 1
Mathematics, 21.06.2019 23:00, miahbaby2003p2af1b
Prove that 16^4-2^13-4^5 is divisible by 11.
Answers: 1
Mathematics, 22.06.2019 01:00, ashiteru123
Multiply: 2.7 Γ (β3) Γ (β1.2). a. β9.72 b. β10.8 c. 10.8 d. 9.72
Answers: 2
In a test, for esp (extrasensory perception), the experimenter looks at cards that are hidden from t...
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