Statistics 9ST0/03 June 2023 | Edexcel A Level Past Papers With Mark Scheme

Edexcel A Level Statistics (9ST0) Jun 2023

معلم موافق رایگان بودن است.

1. Discrete distribution and conditional probability modeling for video game yield, expected value and variance calculations, application of central limit theorem, normal approximation for sample mean estimation

2. Percentage increase interpretation dispute, cross-country e-commerce data analysis for advertising decisions, critique of univariate decision-making, demographic and socio-economic segmentation impact on digital purchasing behavior

3. Two-way ANOVA for battery lifespan comparison across materials and temperatures, blocking factor effectiveness, interaction assessment between treatment and block, assumptions on normality and variance homogeneity

4. Model identification and justification for real-world count/time processes, appropriate use of Poisson and exponential distributions, context-based critique of model suitability

5. Linear regression between individual and average speedcubing times, coefficient interpretation, database merging using unique identifiers, data preprocessing for result extraction

6. Confidence interval for mean penalty corners, binomial test for goal conversion proportion, critical region and Type I error explanation, power calculation under alternative hypothesis, validity critique based on rule changes and distributional assumptions