Math topic中文

Quartiles percentiles

quartiles and percentiles

Practice questions

  1. 1The masses of two batches of 400 steel bars produced by factory A and B were measured and recorded. The cumulative frequ…
  2. 2The stem-and-leaf diagram shows the test scores of the boys and girls from a particular class. [Stem-and-leaf diagram pr…
  3. 3The cumulative frequency graph shows distribution of the waiting times before being served, in minutes, of 60 customers…
  4. 4The waiting time, t in minutes, for 40 customers at two phone service shops, Shop A and Shop B, are as follows. Calculat…
  5. 5The temperatures of eighteen girls in a class on a particular day are shown in the stem-and-leaf diagram. (Stem-and-leaf…
  6. 6The heights of 400 students in School A are recorded. The cumulative frequency curve below shows the distribution of the…
  7. 7The heights, in centimeters, of 100 plants of each of species A and species B are recorded. The cumulative frequency cur…
  8. 8The cumulative frequency curve shows the weekly expenditure on home deliveries of 160 households from Block W. Use the c…
  9. 9The masses, in grams, of 200 apples of each of variety A and variety B are recorded. The cumulative frequency curves sho…
  10. 10The ages of 18 swimmers and 11 cyclists in a sports carnival race were recorded. The results are shown in the stem-and-l…
  11. 11The cumulative frequency graph shows the distribution of times of the first 120 runners to finish a marathon in 2022. Th…
  12. 12The box-and-whisker plots show the distribution of the masses (in grams) of eggs sold in Shop A and Shop B. There are 25…
  13. 1360 potato plants produce 5 to 10 potatoes each. The mass of potatoes produced by each plant were measured. The cumulativ…
  14. 14The cumulative frequency graph below shows the weight of 240 students in a school. Use the graph to find (a) the number…
  15. 15The cumulative frequency curve below illustrates the wait time of 240 customers who visited a bank. Use the graph to est…
  16. 16A researcher wants to conduct a study to find out if there is a correlation between the analytical skills of adults with…
  17. 17The weights (in kg) of 14 students are measured and illustrated in the dot diagram. the range of the weights. Answer ___…
  18. 18The cumulative frequency curve shows the distribution of the wages per week of 80 workers in a factory. Use the curve to…
  19. 1920 female shoppers went to buy their groceries. The amount of time (in minutes) each female shopper spent is shown in th…
  20. 20The masses of 40 oranges were measured. The cumulative frequency curve below shows the distribution of the masses. Use t…
  21. 21The cumulative frequency graph shows the distribution of heights of a sample of 240 children from ABC Primary School. Fi…
  22. 22The cumulative frequency diagram shows the time in hours that each of the 120 adults from Town A spend on exercise in on…
  23. 23The amount of mass loss in kilograms of 200 members was recorded by Amazing Fitness Centre over a one year period. The c…
  24. 24The table shows the scores of 10 students in a Mathematics test. Write down the values of w, x, y and z. Answer w = ___…
  25. 25In February 2021, a survey was carried out to find the number of days 500 patients stayed at a hospital. The graph shows…
  26. 26The stem-and-leaf diagram shows the daily number of customers over a period of one month at Branch A of a Food Outlet. W…
  27. 27A set of Pollutant Standards Index (PSI) taken from different parts of Singapore is as follows. 28 30 48 19 70 50 32 72…
  28. 28The time spent by 60 students on social media in a week is recorded. The cumulative frequency curve below shows the dist…
  29. 29Six hundred runners took part in a race. The fastest runner took 8 minutes to complete the race while the slowest took 1…