Mathematics, 04.10.2020 14:01 charlottiechecketts0
The graph of f(x) = (0.2)(x^4 + x^3 – 12x^2) is shown. On a coordinate plane, a graph decreases through (4, 0) to (3, negative 11) and then curves up to (0, 0). It then curves down to (2, negative 4), and curves up through (3, 0). Based on the graph, what is the solution to (0.2)(x^4 + x^ 3 – 12x^2) < 0?
Answers: 1
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
The graph of f(x) = (0.2)(x^4 + x^3 – 12x^2) is shown. On a coordinate plane, a graph decreases thro...
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