Year 8 Data Handling Questions 1. [Q12, November 2012 2H] The frequency table gives information about the times it took some office workers to get to the office one day. Time (t minutes) Frequency 0 < 10 4 t 10 < 20 8 t 20 < 30 14 t 30 < 40 16 t 40 < 50 6 t 50 < 60 2 t (a) Draw a frequency polygon for this information. (2) (b) Write down the modal class interval. .............................................. (1) One of the office workers is chosen at random. (c) Work out the probability that this office worker took more than 40 minutes to get to the office. .............................................. (2) (Total for Question 12 is 5 marks) 2. [Q6 Nov 2009 3H] 30 students took a test. The table shows information about how long it took them to complete the test. Time (t minutes) Frequency 0 < 10 5 t 10 < 20 7 t 20 < 30 8 t 30 < 40 6 t 40 < 50 4 t (a) On the grid, draw a frequency polygon for this information. (2) (b) Write down the modal class interval. ...........................................(1) Cumulative Frequency and Box Plots 3. The table shows information about the heights of 40 bushes. Height (h cm) Frequency 170 < 175 5  h
Year 8 Data Handling Questions 1. [Q12, November 2012 2H] The frequency table gives information about the times it took some office workers to get to the office one day. Time (t minutes) Frequency 0 < t 10 4 10 < t 20 8 20 < t 30 14 30 < t 40 16 40 < t 50 6 50 < t 60 2 (a) Draw a frequency polygon for this information. (2) (b) Write down the modal class interval. .............................................. (1) One of the office workers is chosen at random. (c) Work out the probability that this office worker took more than 40 minutes to get to the office. .............................................. (2) (Total for Question 12 is 5 marks) 2. [Q6 Nov 2009 3H] 30 students took a test. The table shows information about how long it took them to complete the test. Time (t minutes) Frequency 0 < t 10 5 10 < t 20 7 20 < t 30 8 30 < t 40 6 40 < t 50 4 (a) On the grid, draw a frequency polygon for this information. (2) (b) Write down the modal class interval. ...........................................(1) Cumulative Frequency and Box Plots 3. The table shows information about the heights of 40 bushes. Height (h cm) Frequency 170  h < 175 5
Yr8-DataHandlingWorksheet.docx