Y10 Get real – sources of variation in data & using real data for probability experiments
Students use the PPDAC cycle to undertake statistical and probability investigations. This unit of work explicitly looks at making valid and reliable measurements and considers the different sources of variation that are present in data, and students design and explore probability distributions for real data about themselves.
Session 1: In this session, students explore real variation and apply the聽statistical enquiry cycle (PPDAC)聽to a summary situation using measurement data, sourcing data from the latest CensusAtSchool database, and collect some data from themselves.
Session 2: 聽In this session students explore induced variation due to measurement and accident and dig deep into planning what to measure and how (PLAN).
Session 3: In this session, students explore induced variation from sampling, developing the concept of sampling variability using samples of size 30 (ANALYSIS).
Session 4: In this session, students design and explore probability distributions for real data about themselves. In this session they pose a chance-based investigative question (PROBLEM), PLAN to collect data (experimental estimates of probabilities) and then collect and record the DATA by undertaking the probability experiment.
Session 5: In this session, students design and explore probability distributions for real data about themselves. In this session they ANALYSE the data, answer the chance-based investigative question and communicate their findings (CONCLUSION). This session continues work carried out in session four.