Mathematics, 21.04.2021 03:40, reedj7736
The scores on a test are normally distributed with a mean of 250 and a standard deviation of 20. What is the score that is 1 standard deviation below the mean
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, 21.06.2019 22:30, kpopqueen0
Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1
Answers: 2
Mathematics, 21.06.2019 23:00, jenhowie2944
Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?
Answers: 1
The scores on a test are normally distributed with a mean of 250 and a standard deviation of 20. Wha...
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