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Question 1 of 10

1. Question

State the following data as categorical or numerical.

the items students eat for lunch

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Question 2 of 10

2. 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 3 of 10

3. Question

A shoe store makes sales with the median is 340 dollars and the mean is 310 dollars. Which is the best measure of centre use it to predict average profit?

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Question 4 of 10

4. Question

When we choose 100 students in a school randomly, it is found that there are 55 boys and 45 girls. Estimate the experimental probability of choosing boys or girls.

Experimental probability =

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Hint

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

Question 5 of 10

5. Question

A card is randomly selected from a box containing three red, five yellow and four blue cards. Find the probability of getting a red and a yellow card.

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Question 6 of 10

6. Question

There are five green and two blue marbles in a bag. Two marbles are removed, one after the other without replacement. What is the probability that the marbles are the same colour? Answer to two decimal places.

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Question 7 of 10

7. Question

Given \(P\left( A \right) = \dfrac{1}{2}\) and \(P\left( B \right) = \dfrac{1}{3}\), find \(P\left( {\text{neither}\;A\;\text{nor}\;B} \right)\), correcting to one decimal place.

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Question 8 of 10

8. Question

Choose the best description of the grid shown below.

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Question 9 of 10

9. Question

Select the corresponding frequency table for the cumulative frequency graph shown.

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Question 10 of 10

10. Question

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