Which one of the following sentences has an error in capitalization?
a. my father has decided to retire in the fall of next year.
b. we crossed the snake river and miles of nothing much on our way to abilene.
c. they say the power river is a mile wide and an inch deep.
d. that day, across the great river, we got our first view of the washington monument.

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?