Cumulative frequency graph questions
[DOC File]Answer ALL questions - Maths Tallis
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The cumulative frequency table gives information about their ages. Age (a years) Cumulative frequency 0 < a ≤ 20 25 0 < a ≤ 30 70 0 < a ≤ 40 138 0 < a ≤ 50 175 0 < a ≤ 60 186 0 < a ≤ 70 194 0 < a ≤ 80 200 (a) On the grid opposite, draw a cumulative frequency graph for this information. (2) (b) Graham says,
[DOC File]Cumulative Frequency – group task
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Cumulative Frequency – group task . Take 15 minutes to read and digest the following scenario and questions and discuss it with a partner. Cumulative frequency graphs answer questions such as “What proportion of the data has values less than …?” With grouped data the first step is to produce a table of . cumulative frequencies
[DOC File]Answer ALL questions
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In part (d) 18% of candidates gained the mark for finding an estimate for the median from their cumulative frequency graph. This was too often done by eye rather than reading from the graph. Those who did use the graph often misread the horizontal scale and gave 106 as their answer.
[DOC File]Answer ALL questions
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cf graph Correct Cf graph 3 B1 Correct cumulative frequencies (may be implied by correct heights on the grid) M1 for at least 5 of “6 points” plotted consistently within each interval. A1 for a fully correct CF graph (b)(i) (ii) IQR = UQ – LQ 172. 12 – 14. 3 B1 for 172 or read off at cf = 30 or 30.5 from a cf graph, ft provided M1 is ...
[DOC File]Cumulative Frequency – group task
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Cumulative frequency graphs answer questions such as “What proportion of the data has values less than …?” Cumulative frequency on the y-axis is plotted against the observed value on the x-axis. Describe the shape the graph would take. With grouped data the first step is to produce a table of . cumulative frequencies
Answer ALL questions - Wilmslow High School
2 days ago · The cumulative frequency table gives information about their ages. Age (a years) Cumulative frequency 0 < a ≤ 20 25 0 < a ≤ 30 70 0 < a ≤ 40 138 0 < a ≤ 50 175 0 < a ≤ 60 186 0 < a ≤ 70 194 0 < a ≤ 80 200 (a) On the grid opposite, draw a cumulative frequency graph for this information. (2) (b) Graham says,
[DOC File]1
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By the end of these questions you should know: How to construct a cumulative frequency diagram. The difference between a cumulative frequency polygon and a cumulative frequency curve. How to find from a cumulative frequency diagram. The median using the n th value. 2 The lower quartile using the n th value. 4 The upper quartile using the 3n th ...
[DOC File]Answer ALL questions - Maths Tallis
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questions. Answer the questions in the spaces provided ... Complete the cumulative frequency table. Age (A years) Frequency 20 < A ( 30 26 30 < A ( 40 40 < A ( 50 50 < A ( 60 60 < A ( 70 ... draw a cumulative frequency graph for your table. (2) (c) Use your graph to find an estimate for the median age..... years (1) (d) Use your graph to find ...
[DOC File]Answer ALL questions
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The cumulative frequency table gives information about their ages. Age (a years) Cumulative frequency 0 < a ≤ 20 25 0 < a ≤ 30 70 0 < a ≤ 40 138 0 < a ≤ 50 175 0 < a ≤ 60 186 0 < a ≤ 70 194 0 < a ≤ 80 200 (a) On the grid opposite, draw a cumulative frequency graph for this information. (2) (b) Graham says,
[DOC File]The Practice of Statistics - AP STATISTICS - AP Statistics
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Explain how to find the cumulative frequency column. Explain how to find the cumulative relative frequency column. Explain how to make a cumulative relative frequency graph. What can a cumulative relative frequency graph be used to describe? Answer the four questions for the Check Your Understanding on page 89. Explain how to standardize a ...
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