State which of the types of sampling (random, stratified, systematic, cluster, convenience) 1. Over a period of 2 days, measure the length of time every 5th person
coning into a bank waits for teller service. 2. Take a sample of 5 voting districts from the Cleveland metropolitan region. Select every elementary school from each of

the selected voting districts and determine the number of students enrolled in first grade. 3. A pollster uses a computer to generate 500 random phone numbers and

interviews the voters corresponding to those phone numbers. 4. A market researcher selects 500 drivers at random under 30 years of age and 500 drivers at random over

30 years of age in Arizona.

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