A Survey Showed That in Each of the Past 12

question 154

Multiple Choice

A survey showed that in each of the past 12 months there was one person who was unemployed who worked in all other months.There were also two people who were unemployed for all 12 months.What percentage of the unemployment spells during the year was short term,and what percentage of the unemployment in a given month was long term?

• A)75% was short term;33.3% was long term
• B)75% was short term;66.7% was long term
• C)85.7% was short term;33.3% was long term
• D)85.7% was short term;66.7% was long term

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Definitions:

Sample Mean

The average value calculated from a sample of data, representing the central tendency.

Population Mean

The average value of all the data points in a population, representing the central tendency of the dataset.

Stratified Sampling

A sampling method that divides the population into smaller groups, or strata, based on shared attributes or characteristics before sampling to ensure a more representative sample.

Sampling Method

A technique used in statistics to select a subset of individuals from a population to estimate characteristics of the whole population.