Helen used 14 of her savings for her first year of college. 38 of that money was spent on her housing and meals.

Which equation shows the fraction of her total savings that was spent on her housing and meals?

CLEAR CHECK

38÷14=24

38⋅14=332

38÷14=128

38⋅14=412

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?