Mastering Decision Making Skills

Harper is planning a road trip from Sydney to Melbourne, covering a distance of 880 km, at an average speed of 110 km/h. How long does the journey take?

• 6 hours

• 8 hours

• 10 hours

• 12 hours

If all students are learners and some learners study diligently, which of the following must be true?

• All students study diligently.

• Some students study diligently.

• No students study diligently.

• Some learners do not study diligently.

Grace has a bag containing 4 red marbles, 5 blue marbles, and 1 green marble. What is the probability of randomly selecting a blue marble?

Which of the following best describes a decision tree?

• A diagram showing the relationship between sets.

• A flowchart-like structure for making decisions.

• A table of numerical data.

• A list of logical statements.

If the statement "If it rains, then the ground gets wet" is true, which of the following is also true?

• If the ground is wet, it must have rained.

• If it does not rain, the ground cannot be wet.

• If it rains, the ground gets wet.

• If the ground is not wet, it did not rain.

Emma is organizing a marine biology presentation. Which Venn diagram best represents the relationship between mammals, whales, and fish?

• Three separate circles.

• Whales inside mammals, both separate from fish.

• Mammals and fish overlapping, whales in the overlap.

• Whales inside fish, both inside mammals.

A survey found that 60% of students prefer football, 30% prefer cricket, and 10% prefer both. What percentage prefer only football?

• 50%

• 60%

• 40%

• 70%

If all A are B, and all B are C, which of the following is true?

• All C are A.

• All A are C.

• Some C are not A.

• No A are C.

Which of the following is an example of critical thinking?

• Memorising facts for an exam.

• Accepting information without question.

• Analysing evidence before forming a conclusion.

• Repeating what others say.

A real-world scenario: Tom, Sarah, and Alex are sitting on a park bench. Tom is not at either end. Sarah is to the left of Tom. Who is in the middle?

• Tom

• Sarah

• Alex

• Cannot be determined