Grouped household-size data

Grouped household-size data

Secondary 2
TGM Original Questions

Forty household child counts consist of five 0s, seven 1s, ten 2s, six 3s, four 4s, three 5s, three 6s and two 7s.

  1. Complete a tally/frequency table for \(0\le x<2,2\le x<4,4\le x<6,6\le x<8\).
  2. Complete the scaled partial histogram.
    1. Exactly 30% have at least \(x\) children; find \(x\).
    2. Explain why a dot plot may be less suitable.

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(12,16,7,5\); (b) add bars at \(16,7,5\); (c)(i) \(x=4\); (ii) a dot plot would be cluttered and less compact.

Need help? Join our JC Math tuition classes.

Learn more