Mathematics, 14.12.2020 23:30, alayciaruffin076
Thomas decides on a destination for his vacation. If he takes the train there, it
will take him 1/8 hours to get there. If he takes the plane, it will take him 3 2/3
hours.
How many hours does the plane save?
Answers: 3
Mathematics, 21.06.2019 18:30, Snowinvain
An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?
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
Thomas decides on a destination for his vacation. If he takes the train there, it
will take him 1/8...
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