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12 July, 19:40

Sneha is inspecting the average cleanliness of the rooms in a hotel. There are 10 floors in the hotel, each with 20 rooms. From each floor, she randomly selects 2 rooms and inspects them and then takes the average of these scores. What type of sampling did Sneha use

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  1. 12 July, 20:01
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    Answer: Stratified sampling

    Step-by-step explanation:

    Stratified sampling is a particular kind of random sampling technique.

    Here, the researcher splits the entire population into distinct groups known as strata.

    Then he draw a sample by taking participants from each strata and continue his work on sample.

    As per given,

    Researcher = Sneha

    Strata = Each floor

    Since from each floor she randomly selects 2 rooms and inspects them and then takes the average of these scores.

    Therefore, Sneha used the Stratified sampling technique.
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