Data & Statistics (Foundations)

Data & Statistics: core idea

• 1. Find the median of $3,8,2,11,6$.

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• 2. What is the mode of $5,5,6,7,7,7,9$?

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• 3. What is the range of $14,19,8,23$?

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• 4. A bag has $3$ green and $5$ yellow tokens. What is the probability of drawing green?

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• 5. A bar graph shows $18$ books in January and $25$ in February. How many more were sold in February?

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• 6. The mean of five values is $12$. What is their total?

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• 7. In a data set, $40\%$ of $75$ observations are red. How many are red?

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• 8. A spinner has $6$ equal sections numbered 1 through 6. What is the probability of an even number?

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• 9. What is the interquartile range if $Q_1=12$ and $Q_3=29$?

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