question 21

Rob is ignoring the assumption that all survey participants will want to act independently. Rob included too many people on the survey list, affecting the data collected. The survey suffers from census issues because only 256 people responded. The survey likely has bias because the people who could not answer differ from those who did answer. Rob sent an email survey to 2,000 cell phone owners asking about their satisfaction with their current plan. Only 256 people returned the survey and they were predominately 18-24 years old. Which of the following statements is true? In which of these cases should the median be used? 0 When the data has small variance 0 When the data has extreme values 0 When the data has nominal values 0 When data has no outliers Sets A and B have 15 common elements. Set B has 5 elements. Set A has 12 elements. There are a total of'l7 elements shown in the Venn diagram. Two sets A and B are shown in the Venn diagram below. A B Which statement is TRUE? \f0.22 Using this Venn diagram, what is the probability that event A or event B occurs? Which of the following situations describes a discrete distribution? 0 A probability distribution showing the weights of newborns. A probability distribution showing the average time it takes for children to walk to school. A probability distribution showing the heights of children in a first grade class. A probability distribution of the quantity of babies in the intensive care unit