1) Data science is extracting meaning from large data sets in order to gain insights to support decision-making. a) True b) False 2) Data visualisations are..... a) visual representation of data (such as charts and graphs) intended to help an audience process the information more easily and get a clear idea about the data at a glance. b) a virtual reality game where you have to complete data challenges c) A type of projector that is designed to display graphs really clearly  3) Infographics are... a) visual representations of data, often involving pictures that reflect patterns and help tell a story. b) are images in a computer game c) I've no idea! d) representing data using just words 4) Is this image a visualisation or infographic? a) infographic b) visualisation 5) What is a variable? a) Something that can change b) A type of sweet c) Something that can not change 6) What is an outlier a) a data point that differs significantly from other observations b) An engine on a boat that sits on the rear c) data points that are all following the same correlation 7) A corellation is... a) a relationship between the two variables b) where fish live c) no relationship between two variables 8) This image shows what type of corelation? a) Negative b) Neutral c) Positive 9) What is the PPDAC cycle? a) No idea! b) a framework for us to follow when asking and answering real-world problems using data c) A type of bike that can have a trailer attached to the back d) What happens when you first switch your computer on 10) Which one of these is the correct words for the PPDAC cycle a) problem, plan, data, analysis, conclusion b) plan, predict, develop, ask, compare c) print, paper, draw, access, colour d) problem, plan, data, answer, conclusion

Yr 9 Data Science Revision

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