Statistics Questions & Answers

Statistics Questions & Answers BAD SURVEY - ANSWER: 1.Do not ask leading questions; Don't influence people's decisions 2. Do not ask personal questions 3. Do not include any overlapping responses biased - ANSWER: means UNFAIR Box plots - ANSWER: 5 pieces of information commenting on the box plot - ANSWER: if the question has 4 marks comment on 4 things that you could compare in the box plot. Comment on the IQR, the median, the skew, the range. (SOCS) Comparing distributions talk about: - ANSWER: An average - such as median or mean The spread of the data; the range or interquartile range Cumulative frequency - ANSWER: Cumulative frequency - ANSWER: A running total Describing Negative correlation - ANSWER: The more (explanatory variable) the less (response variable) Describing Positive correlation - ANSWER: The more (explanatory variable) the higher (response variable) Explanatory Variable - ANSWER: The variable that determines why a change occurs in another variable. (The x variable) Extrapolation - ANSWER: trying to make predictions from a scatter graph when the value is outside of the given data.