I WILL PUT YOU AT BRAINLIST IF YOU GIVE ME THE ROGHT ANDWER At your store you have many special Promotions every 10th customer get a free goldfish and every nine customer gets a clown fish which customer will be the first to receive a goldfish and a clown fish

Anyone know? will mark brainliest if correct

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?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog