Communication { 6 marks } 29. Find at least two things wrong in the table below and describe the error. {2 marks - C} Height (cm) Frequency 60-62 6 63-65 18 66-69 44 69-75 10 30. Describe the difference between the type of information shown in a bar graph and histogram and the key difference in how the information is displayed. (2 marks - C} 31. Explain with examples how response bias and non-response bias in a survey differ. {2 marks - C}