Math topic中文

Compare data sets

using the mean and standard deviation to compare two sets of data

Practice questions

  1. 1The stem-and-leaf diagram shows the test scores of the boys and girls from a particular class. [Stem-and-leaf diagram pr…
  2. 2The marks of a group of 19 students in a test were recorded, as the marks are shown in the stem and leaf diagram. The mo…
  3. 3The stem and leaf diagram below shows the marks obtained by 30 students in a Science test marked out of 80 marks. Find t…
  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 ages of 18 swimmers and 11 cyclists in a sports carnival race were recorded. The results are shown in the stem-and-l…
  8. 8The table below shows the number of books read by 50 students in Class A in semester 1. Calculate an estimate for the me…
  9. 920 female shoppers went to buy their groceries. The amount of time (in minutes) each female shopper spent is shown in th…
  10. 10The table below summarises the times taken by female participants to complete a 10 km race. Given that the estimated mea…
  11. 11The masses of 40 oranges were measured. The cumulative frequency curve below shows the distribution of the masses. Use t…
  12. 12A group of 50 patients had their blood pressure taken. The results are shown in the table below. State the median class…
  13. 13The distances travelled per litre of petrol of 50 cars manufactured in Factory X are shown in the table below. Calculate…