Sets and Probability

The Year 7 girls in a primary school are surveyed to find what sports they play. The results are shown in the Venn diagram. How many girls play soccer but not tennis?

• 1

• 3

• 14

• 34

The Year 7 girls in a primary school are surveyed to find what sports they play. The results are shown in the Venn diagram. If a Year 7 girl is selected at random, what is the probability that she plays volleyball?

• 20

• 0.5

• 0.4

• 30/50

The Year 7 girls in a primary school are surveyed to find what sports they play. The results are shown in the Venn diagram. If a Year 7 girl is selected at random, what is the probability that she plays all three sports?

• 3

• 6

• 0.06

• 0.03

80 students study Music at Harmony College. The number of them doing Chorus, Band or Orchestra are shown on the Venn diagram. What is the probability that a randomly selected Music student does Band only?

• 50%

• 20%

• 20/70

• 1/4

Choose the correct notation and then find the probabilities associated with randomly selecting a high school student who:

• undefined = 0.45
  

The mathematical calculation that an event will happen in theory.

• Sample Space

• Empirical Probability

• Theoretical Probability

• Tree Diagram

Choose the correct notation and then find the probabilities associated with randomly selecting a high school student who:

• undefined = 0.45
  

80 students study Music at Harmony College. The number of them doing Chorus, Band or Orchestra are shown on the Venn diagram. What is the probability that a randomly selected Music student studies Chorus and Orchestra?

• 12%

• 3/20

• 0.12

• 12

80 students study Music at Harmony College. The number of them doing Chorus, Band or Orchestra are shown on the Venn diagram. What is the probability that a randomly selected Music student studies exactly two of these options?

• 19/80

• 24/80

• 0.19

• 34/80

80 students study Music at Harmony College. The number of them doing Chorus, Band or Orchestra are shown on the Venn diagram. What is the probability that a randomly selected Music student studies only one of these options?

• 19/80

• 24/80

• 0.19

• 46/80