Statistics

Full descriptive statistics and a distribution chart for a data set.

Population and sample standard deviation, variance and mean.

All three measures of central tendency, plus range.

Average where each value carries a different weight.

Standard score and the probability either side of it.

Confidence interval and margin of error for a sample mean.

Single and combined event probability, odds and complements.

Exact and cumulative binomial probabilities.

Area under the normal curve between any two values.

Pearson correlation coefficient between two data sets.

Line of best fit, slope, intercept and R² with a scatter plot.

Percentile rank and the value at any percentile.

How many responses you need for a given confidence and margin.