Compound events and tree diagrams

Probabilities of two or more events using lists, tables, and tree diagrams.

Standards:7.SP.C.8

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

A bag contains 3 red balls and 2 blue balls. You draw one ball, do NOT replace it, then draw a second ball. What is the probability that both balls are red?

Question 2 of 3

A restaurant offers two appetizers (Soup or Salad) and three main courses (Chicken, Fish, or Pasta). A customer randomly picks one appetizer and one main course. What is the probability that the customer chooses Soup and Fish?

Question 3 of 3

A spinner has 3 red sections and 2 blue sections. You spin twice. What is the probability of getting red on the first spin AND blue on the second spin?

How this fits in

Compound events and tree diagrams is one skill in the Statistics & Probability unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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