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Let's do the activity!

Justin Timberlake’s concert promoter wants to find out how much fans in the V.I.P. section enjoy the concert. He will estimate the average enjoyment level (1 to 100) for all 50 fans by selecting a sample of 10 fans.

Method #1: Simple Random Sample

Assign each fan a number. Randomly select 10 of the numbers.
Interview fans assigned the 10 selected numbers.

Average enjoyment for the sample: ?

Method #2: Stratify by Row

Randomly select two fans from each row.
Average enjoyment for the sample: ?

Method #3: Stratify by Column

Randomly select one fan from each column.
Average enjoyment for the sample: ?

Let's see how we did!


Average enjoyment for the population: ?


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