Alocal garden club had 14 members with a mean age of 34. then two new members joined. one was 24 years old, and the other was 36 years old. how did the mean age change after they joined?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

What is the volume of this container?

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?