S1 Tutorials – Edexcel International A Level (IAL)
Collecting Data
Understanding population, census and samples
Representing Data
Mean
Median and Quartiles
- Median, lower, upper quartiles and interquartile range for discrete data
- Exam Questions - Median, lower, upper quartiles and interquartile range for discrete data
- Cumulative frequency curves
- How to interpret class intervals
- Estimating the median, quartiles, percentiles from a grouped frequency table
- Exam Questions - Estimating the median from a grouped frequency table
- Exam Questions - Estimating the median from a histogram
Standard Deviation
Statistical Diagrams
Probability
Possibility Space (Sample Space)
Tree Diagrams
Venn Diagrams
Independent, Dependent and Mutually Exclusive Events
Discrete Random Variables
The Normal Distribution
The Normal Distribution
- The normal distribution
- The standard normal distribution Z~N(0,1) - Using tables or calculator
- Probabilities from a normal distribution using tables
- Exam Questions - Normal distribution, finding a probability
- Calculating the mean μ and standard deviation σ
- Exam Questions - Calculating the mean and standard deviation
- Exam Questions - Finding an observed value