https://www.plus3sd.co.uk/home daily 1.0 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/c724723a-566e-4a2f-8d3f-a66941b6f739/plus3sd-removebg-preview.png https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/35ab5cc8-d42b-4526-8b34-5e6ebef3275c/Mum+1.jpg https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/1767544545979-BTN281ZPYOF37C9VG0PJ/unsplash-image-0ZUoBtLw3y4.jpg https://www.plus3sd.co.uk/privacy-policy daily 0.75 2026-01-04 https://www.plus3sd.co.uk/terms-conditions daily 0.75 2026-01-04 https://www.plus3sd.co.uk/safeguarding-policy daily 0.75 2026-01-04 https://www.plus3sd.co.uk/store daily 0.75 57945-02-05 https://www.plus3sd.co.uk/store/p/4th-may-2026-lesson-12-formulae-and-calculator-use monthly 0.5 2026-02-10 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 6th May 2026 - Lesson 12 - Binomial Distribution - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/27th-april-2026-lesson-11-probability-and-risk monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 29th April 2026 - Lesson 11 - Probability and Risk - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/20th-april-2026-lesson-10-normal-distribution monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 22nd April 2026 - Lesson 10 - Normal Distribution - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/13th-april-2026-lesson-9-use-of-standard-deviation monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 15th April 2026 - Lesson 9 - Use of standard Deviation - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/23rd-march-2026-lesson-8-index-numbers monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 25th March 2026 - Lesson 8 - Index numbers - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/16th-march-2026-lesson-7-world-data monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 18th March 2026 - Lesson 7 - World Data - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/9th-march-2026-lesson-6-fluctuating-data monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 11th March 2026 - Lesson 6 - Fluctuating Data - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/2nd-march-2026-lesson-5-standard-deviation-standardised-scores-and-quality-assurance monthly 0.5 2026-01-04 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 4th March 2026 - Lesson 5 - Correlation - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/23rd-february-lesson-4-cumulative-frequency-curves-and-box-plots monthly 0.5 2026-02-24 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 25th February - Lesson 4 - Displaying Data session 2 - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/9th-february-2026-lesson-3-average-weighted-and-geometric monthly 0.5 2026-02-10 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 11th February 2026 - Lesson 3 - Averages - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/2nd-february-2026-lesson-2-display-data-pie-charts-comparative-pie-chart-hisograms monthly 0.5 2026-02-03 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 4th February 2026 - Lesson 2 - Displaying Data session 1 - plus3sd-removebg-preview.png https://www.plus3sd.co.uk/store/p/lesson-1-sampling-and-data-collection monthly 0.5 2026-01-27 https://images.squarespace-cdn.com/content/v1/694848611b106e4c975ec7da/aac5ef4d-4db1-42d5-a058-061b4de36624/plus3sd-removebg-preview.png Store - 28th January 2026 - Lesson 1 - Sampling and Data Collection - plus3sd-removebg-preview.png