Exploring Probability in 7th Grade

A bag contains 5 red marbles and 3 blue marbles. What is the probability of drawing a red marble from the bag?

A coin is flipped twice. What is the probability of getting two heads?

A die is rolled. What is the probability of rolling a number greater than 4?

In an experiment, a spinner is spun 50 times and lands on red 20 times. What is the experimental probability of landing on red?

A bag contains 4 green, 3 yellow, and 3 blue marbles. If a marble is drawn 100 times and a green marble is drawn 40 times, what is the experimental probability of drawing a green marble?

List all possible outcomes when flipping a coin and rolling a die.

• 6 outcomes

• 8 outcomes

• 10 outcomes

• 12 outcomes

How many outcomes are there in the sample space when rolling two dice?

• 12

• 24

• 36

• 48

A survey of 100 students found that 60 prefer chocolate ice cream. What inference can be made about the preference of chocolate ice cream in the entire school of 1000 students?

• 400 students prefer chocolate

• 500 students prefer chocolate

• 600 students prefer chocolate

• 700 students prefer chocolate

A random sample of 200 people shows that 150 like pizza. What can be inferred about the preference for pizza in a town of 10,000 people?

• 5,000 people like pizza

• 6,000 people like pizza

• 7,500 people like pizza

• 8,000 people like pizza