Question 19 (1 point) When Jill is purchasing her first new car, she is given a choice of two upholstery materials (cloth or leather) and four colours (black,
ivory, grey, and blur). How many different choices she has?
a
2
4
6
8

3x + 4y = 5 x- 3y = -7 solve by substitution

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?

Manuela solved the equation below. what is the solution to manuela’s equation?