Controls

Sample size

Choose how many students are in each random sample.

Generates ten independent random samples at the chosen size.
Sample size set to n = 5

Summary

There are no samples to summarize.

The population histogram appears bell-shaped, with a slightly longer tail on the left side. The scores represent college students' overall life satisfaction (on the SWLS assessment). Each score ranges from 5 (extremely dissatisfied) to 35 (extremely satisfied). The mean for the population is 24.

Legend: Purple solid = Normal curve (μ=24, σ=6), Red dashed = Population mean (μ=24), Green solid = Sample mean (x̄).

Population (M = 24, SD = 6)

The SWLS scores are bounded at 5 and 35, and demonstrate a negative skew to the left. The X-axis ticks are at 5, 10, 15, …, 35. Bin width = 1.

Toggle the blue theoretical normal curve overlay on all charts.

Samples (10, All generated at once)

Each sample will display a histogram on the same axes as the population. Below each chart a text summary will report min, max, and mean.