Practice outline (enable JavaScript for interactive mode)
Q1. A school cafeteria offers 5 different sandwiches, 3 different salads, and 2 different soups. One student will be chosen at random from those who bought lunch on Tuesday. Of the students who bought lunch that day, 120 bought a sandwich, 45 bought a salad, and 35 bought soup. What is the probability that the selected student bought a salad?
Q2. A bag contains only red and blue marbles. The probability of randomly selecting a red marble from the bag is 8 3 . If there are 24 marbles in the bag, how many blue marbles are in the bag?
Q3. A spinner is divided into 8 equal sections. Three sections are labeled 1, two sections are labeled 2, and three sections are labeled 3. If the spinner is spun once, which expression is equivalent to the probability of landing on a number greater than 1?
Q4. The scatterplot of 20 points shown represents the outcomes of 20 trials of a game. Each point is either above or below the horizontal line y = 5 . If a point above the line represents a win, and 8 of the 20 points are above the line, what is the probability that a randomly selected trial was a win?
Q5. A school survey found that 120 students chose either band or chorus as their favorite elective. Of these students, 70 chose band. If 1 student is selected at random from these 120 students, what is the probability that the student chose chorus?