Consider the followingsituations:

(a) A survey of 18,875 people aged 18 to 25 reported that 55.1% drank alcohol in the pastmonth.

(b) In a study of work stress, 250 restaurant workers were asked about the impact of work stress on their personallives.

(c) In a study of Monarch butterflies, 55 milkweed plants in a Yosemite Valley were randomly sampled. The average number of Monarch eggs per plant was0.73.

Identify the population and sample for each of thesituations.

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Population

Sample

Answer Bank

All people aged 18to25Proportion of55.1%18,875 people age 18to2555 milkweedplants

All restaurantworkers

250 restaurantworkers

All milkweed plants in YosemiteValley

Average of0.73