1. a researcher selects every 12th person admitted to the emergency department with a closed head injury for a research study. this is known as which sampling technique? purposive random systematic purposive

Systematic random sampling technique

Step-by-step explanation:

A systematic random sampling technique is a kind of random sampling method in which a researcher samples participants from a large population by fixing a random beginning point and a fixed periodic interval to select them.

Given : A researcher selects every 12th person admitted to the emergency department with a closed head injury for a research study.

i.e. there is a fixed interval of selection person.

Hence, the this is known as systematic random sampling technique .

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step-by-step explanation:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316