Mathematics, 23.06.2019 08:20 damien0lozano
Question 4 (5 points)the points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standarddeviation of 5 pointsabout what percent of students have scored between 55 and 65 points? a. 2.5b. 47.5c. 68d. 34
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Mathematics, 21.06.2019 19:00, ALEXMASTERS64
Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?
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
Question 4 (5 points)the points obtained by students of a class in a test are normally distributed w...
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