Hi everyone, I need help on this please, thx.
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Answers: 3
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 23:00
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
Answers: 2
Mathematics, 22.06.2019 02:00
Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i
Answers: 2
Mathematics, 22.06.2019 02:30
Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if itβs width were increased to 12 feet?
Answers: 2
Mathematics, 03.09.2019 19:30
Spanish, 03.09.2019 19:30
Computers and Technology, 03.09.2019 19:30
Computers and Technology, 03.09.2019 19:30
Computers and Technology, 03.09.2019 19:30
Computers and Technology, 03.09.2019 19:30