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Cumulative Frequency (BCD). A B C D Q1. Find the median of the following set of numbers: 5, 3, 6, 9, 1, 5, 2, 3, 7. 1 5 4 3.

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Presentation on theme: "Cumulative Frequency (BCD). A B C D Q1. Find the median of the following set of numbers: 5, 3, 6, 9, 1, 5, 2, 3, 7. 1 5 4 3."— Presentation transcript:

1 Cumulative Frequency (BCD)

2 A B C D Q1. Find the median of the following set of numbers: 5, 3, 6, 9, 1, 5, 2, 3,

3 A B C D Q2. Find the median of this set of numbers: 2, 5, 1, 3, 7, 9, 12,

4 A B C D Q3. Find the interquartile range of this data:1, 3, 4, 7, 7, 9,

5 True False Q4. The table is correctly completed to show the cumulative frequency of the data. TimeNumberC.F

6 A B C D 155 hours 175 hours 50 hours 60 hours Q5. Estimate the median life span of the batch of light bulbs.

7 A B C D 112 hours 182 hours 70 hours 155 hours Q6. Estimate the interquartile range from the graph. There are 100 light bulbs in the sample.

8 True False Q7. Is the cumulative frequency polygon drawn correctly? TimeNumberC.F

9 A B C D Q8. How many boys are taller than the tallest girl?

10 A B C D 15, 12 & , 13 & , 12 & , 12 & 4.6 Q9. Find the largest value, the median and the interquartile range from the box plot.

11 A B C D Q10. What does the ‘box’ in a box plot represent? Median Interquartile range Quartiles Range

12 Answers 1. b 2. d 3. a 4. True hours 6. c 7. False 8. d 9. c 10.b


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