In tukey’s rule, which measure of spread is used in the calculation? why would this measure of spread be preferred over others when determining if outliers exist?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

What is 1/3x5 on anuber line what does it look like on a number line

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?