Statistics 9ST0/03 June 2019 | Edexcel A Level Past Papers With Mark Scheme

Edexcel A Level Statistics (9ST0) Jun 2019

معلم موافق رایگان بودن است.

1. Clutch size distribution analysis using discrete probability mass function, calculation of P(X > 6), binomial probabilities, central tendency (mode, median, mean), standard deviation, normal approximation critique

2. Independent sample t-test application on IBS quality of life data, Cohen’s d effect size calculation, pooled variance, p-value interpretation, gender-based comparative analysis

3. Time series trend interpretation using Google Trends search data, seasonality in footwear interest, data visualization limits, missing absolute values and demographic segmentation

4. Poisson distribution modeling for radioactive particle counts, contextual assumptions (independent events, constant rate), conversion to exponential distribution for time between events, cumulative Poisson and exponential probability calculations

5. Hypothesis testing of radiation shielding effectiveness using mean comparison, small sample sizes with assumed normality, significance level application (1%), evaluation of cardboard shielding practicality in nuclear safety

6. Proportion hypothesis test on form submission errors pre- and post-policy change, analysis of test validity assumptions, structured questionnaire sampling strategy using stratified random sampling based on employee seniority and claim behavior