Grouped Frequency Tables Averages Bingo Students should choose
Grouped Frequency Tables – Averages – Bingo Students should choose nine answers from the grid and place them randomly into a 3 x 3 square in their book. You may want to pause your display and choose questions according to difficulty during the game. Depending on time, students could win with a line, an X, or a ‘full house’ (all).
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BINGO! 45 54 23 82 37 12 76 25 91 Mean from a Grouped Frequency Table
Choose your numbers… 30 43 32 2 21 158 4 27 47 20 126 114 5 13 10 33 Draw a 3 x 3 grid in your book.
Computer game loading time on different systems… Estimate a mean for this data. Time, t ( seconds ) Frequency Midpoint f×m 52 6 312 73 18 1314 88 30 2640 213 20. 0 seconds 4266
Pet dogs… Estimate a mean for this data. Weight, w ( kg ) Frequency Midpoint f×m 21 26 546 18 30 540 17 34 578 56 29. 7 kg 1664
Daily earnings of employees… Estimate a mean for this data. Spent, s ( £ ) Frequency Midpoint f×m 8 50 400 5 150 750 4 250 1000 17 £ 126. 47 2150
Students’ heights… Estimate a mean for this data. Height, h ( cm ) Frequency Midpoint f×m 4 135 540 7 165 1155 1 195 12 157. 5 cm 1890
‘Special delivery’ postal packages in a day… Estimate a mean for this data. Weight, w ( kg ) Frequency Midpoint f×m 8 3. 5 28 3 4. 5 14. 5 4 5. 5 22 64. 5 15 4. 3 kg
Scientists conducting a mental-maths experiment… Estimate a mean for this data. Time, t ( seconds ) Frequency Midpoint f×m 9 10 90 17 30 510 12 50 600 38 31. 6 seconds 1200
Corn harvested from different plots… Estimate a mean for this data. Weight, w ( kg ) Frequency Midpoint f×m 6 3. 5 21 11 10. 5 115. 5 5 17. 5 87. 5 22 10. 2 kg 224
Sales from a vending machine…. Estimate a mean for this data. Spent, s ( £ ) Frequency Midpoint f×m 6 0. 5 3 9 1. 5 13. 5 14 2. 5 35 6 3. 5 21 35 £ 2. 07 72. 5
Chimpanzees solving a video puzzle… Estimate a mean for this data. Time, t ( seconds ) Frequency Midpoint f×m 17 2 34 22 6 132 8 10 80 47 5. 2 seconds 246
Penguins at 6 months of age… Estimate a mean for this data. Height, h ( cm ) Frequency Midpoint f×m 6 27. 5 165 4 32. 5 130 4 37. 5 150 2 42. 5 85 16 33. 1 cm 530
Sales at a newsagents… Estimate a mean for this data. Spent, s ( £ ) Frequency Midpoint f×m 10 4 40 15 12 180 8 20 160 3 28 84 36 £ 12. 89 464
A chimpanzee population in a zoo… Estimate a mean for this data. Weight, w ( kg ) Frequency Midpoint f×m 4 10 40 8 20 160 15 30 450 5 40 200 32 26. 6 kg 850
Fast food counter service times… Estimate a mean for this data. Time, t ( seconds ) Frequency Midpoint f×m 8 25 200 13 75 975 21 125 2625 16 175 2800 58 113. 8 seconds 6600
Flower heights after 3 weeks… Estimate a mean for this data. Height, h ( cm ) Frequency Midpoint f×m 8 10 80 0 30 0 9 50 450 7 70 490 24 42. 5 cm
Sales from a takeaway… Estimate a mean for this data. Spent, s ( £ ) Frequency Midpoint f×m 8 5 40 10 15 150 12 25 300 11 35 385 41 £ 21. 34 875
Potted plants after 4 months… Estimate a mean for this data. Height, h ( cm ) Frequency Midpoint f×m 15 35 525 12 45 540 9 55 495 7 65 455 43 46. 9 cm 2015
Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk
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