Identify the following as an experiment or an observational study.
-The card game bridge is played by four players. Each person plays with a person who sits opposite of them. In
duplicate bridge there are many tables of four players at which hands are being played simultaneously. Each
east-west pair moves around the different tables so that they play a few hands against each north-south pair.
One evening there are 40 players. The director would like to select a random sample of 10 players from those
playing that evening. .He interrupts play at 8 pm and announces that all those currently seated in the east
position have been chosen to win free entry to an upcoming tournament

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The Answer of Identify the following as an experiment or an observational study.
-The card game bridge is played by four players. Each person plays with a person who sits opposite of them. In
duplicate bridge there are many tables of four players at which hands are being played simultaneously. Each
east-west pair moves around the different tables so that they play a few hands against each north-south pair.
One evening there are 40 players. The director would like to select a random sample of 10 players from those
playing that evening. .He interrupts play at 8 pm and announces that all those currently seated in the east
position have been chosen to win free entry to an upcoming tournament

Identify the Following as an Experiment or an Observational Study