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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 \(r = – 0.3\).