30 <t 40 7 ≤ 40 <t 50 5 ≤ On the grid below, draw a frequency polygon for this information. (Total for Question 5 is 2 marks) June 2013 Unit 1 (Modular) Higher Calculator Q5 – – – – 31.1 The table gives information about the speeds of 75 cars on a road. Speed (s km/h) Frequency 30 < 40 7 s 40 < 50 22 s 50 < 60 34 s 60 < 70 12 s Work out an estimate for the mean speed. ....................................................... km/h(4) June 2012 Unit 1 (Modular) Higher Calculator Q6 – – – – 31.2 Faisel weighed 50 pumpkins. The grouped frequency table gives some information about the weights of the pumpkins. Weight (w kilograms) Frequency 0 <w 4 11 4<w 8 23 8<w 12 14 12<w 16 2 Work out an estimate for the mean weight. ............................................. kg (4) November 2012 Unit 1 (Modular) Higher Calculator Q3 – – – – The table shows information about midday temperatures. 31.3 Temperature (t °C) Number of days 10 <15 6 t 15 <20 4 t 20 <25 24 t 25 <30 44 t 30 <35 10 t
30 <t ≤ 40 7 40 <t ≤ 50 5 On the grid below, draw a frequency polygon for this information. (Total for Question 5 is 2 marks) June 2013 – Unit 1 (Modular) – Higher – Calculator – Q5 31.1 The table gives information about the speeds of 75 cars on a road. Speed (s km/h) Frequency 30 s < 40 7 40 s < 50 22 50 s < 60 34 60 s < 70 12 Work out an estimate for the mean speed. ....................................................... km/h(4) June 2012 – Unit 1 (Modular) – Higher – Calculator – Q6 31.2 Faisel weighed 50 pumpkins. The grouped frequency table gives some information about the weights of the pumpkins. Weight (w kilograms) Frequency 0 <w 4 11 4<w 8 23 8<w 12 14 12<w 16 2 Work out an estimate for the mean weight. ............................................. kg (4) November 2012 – Unit 1 (Modular) – Higher – Calculator – Q3 31.3 The table shows information about midday temperatures. Temperature (t °C) Number of days 10 t <15 6 15 t <20 4 20 t <25 24 25 t <30 44 30 t <35 10
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