Your statistics instructor claims that 60 percent of the students who take their Elementary Statistics class go through life feeling more enriched. For some reason that they can’t quite figure out, most people don’t believe them. You decide to check this out on your own. You randomly survey 64 of their past Elementary Statistics students and find that 34 feel more enriched as a result of the class. Now, what do you think?

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?

What is fraction that is equivalent to 3/8

Let x = a + bi and y = c + di and z = f + gi. which statements are true?