# Unemployment rate

Over the last 16 years, the country's unemployment rate has changed according to the following frequency table:

years of unemployment: 2 5 2 3 3 1

unemployment rate: 0.5 1 1.5 2 2.5 3 in % (percent).

Determine the two-sided confidence interval for the variance DN with a confidence level of 0.95.

years of unemployment: 2 5 2 3 3 1

unemployment rate: 0.5 1 1.5 2 2.5 3 in % (percent).

Determine the two-sided confidence interval for the variance DN with a confidence level of 0.95.

### Correct answer:

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