3(2x–7)=5–(1–x)
help please...
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
Mathematics, 21.06.2019 22:30
Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.
Answers: 1
Chemistry, 17.07.2019 05:50
Social Studies, 17.07.2019 05:50
History, 17.07.2019 05:50
History, 17.07.2019 05:50
Arts, 17.07.2019 05:50
Arts, 17.07.2019 05:50
Arts, 17.07.2019 05:50
Arts, 17.07.2019 05:50