What are the correct ones? Mine are wrong and I need help:)
...
Answers: 2
Mathematics, 21.06.2019 21:00, mayavue99251
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
Mathematics, 21.06.2019 21:30, amesha62
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, 13.06.2020 02:57
English, 13.06.2020 02:57
Mathematics, 13.06.2020 02:57
Mathematics, 13.06.2020 02:57
Biology, 13.06.2020 02:57
Mathematics, 13.06.2020 02:57
Spanish, 13.06.2020 02:57
English, 13.06.2020 02:57