Estimate the experimental probability of rolling a “five” or “six” with this die.

Experimental probability =

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Hint

\(\text{Experimental probability } = \dfrac{{\text{favourable outcomes }}}{{\text{total number of trials }}}\)

Question 2 of 10

2. Question

Given \(P\left( A \right) = \dfrac{1}{2}\) and \(P\left( B \right) = \dfrac{1}{3}\), find \(P\left( {A\text{ and }B} \right)\), correcting to one decimal place.

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Question 3 of 10

3. Question

The probability of passing English, Chemistry and Biology are 0.7, 0.8 and 0.6 respectively. Assuming the exam results are independent, find the probability of passing at least English and Chemistry.

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Question 4 of 10

4. Question

There is an 80% chance that Ben passes his driving test and a 90% chance that Amy passes hers. Find the probability that Amy passes.

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Question 5 of 10

5. Question

The Venn diagram below shows the number of students in group \(A\), \(B\) or \(C\). Find the number of students who are in either group \(A\) or \(B\).

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Question 6 of 10

6. Question

State the following data as categorical or numerical.

the items students eat for lunch

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Question 7 of 10

7. Question

A phone survey conducted for an insurance company rings \( 500 \) households between 11 am to 2 pm to ask what insurance company they prefer. State the intended population.

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Question 8 of 10

8. Question

The mean of a set of five scores is \( 68 \). What is the new mean of the set of scores after a score of \( 20 \) is added?

The new mean is .

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Question 9 of 10

9. Question

What is the age of the child who is 35 kg?

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Question 10 of 10

10. Question

Describe the strength of the linear relationship with correlation coefficient \(r = – 0.3\).