Block selection sampling refers to selecting:

Block selection sampling refers to selecting:

• A. Random items
• B. A contiguous block of items
• C. Every nth item
• D. A few items chosen randomly from the population

Answer: (B)

Block selection sampling is about taking a contiguous block of items from the population. This means you pick a consecutive run, such as items 101 through 110, rather than selecting items scattered across the list. This contrasts with random sampling, which would choose items from across the entire population; systematic sampling, which selects every nth item in order; and picking just a few items randomly from anywhere, which isn’t a single continuous block. The key idea is the chosen sample forms a continuous sequence, capturing any patterns or characteristics that run across that block.

Block selection sampling is about taking a contiguous block of items from the population. This means you pick a consecutive run, such as items 101 through 110, rather than selecting items scattered across the list. This contrasts with random sampling, which would choose items from across the entire population; systematic sampling, which selects every nth item in order; and picking just a few items randomly from anywhere, which isn’t a single continuous block. The key idea is the chosen sample forms a continuous sequence, capturing any patterns or characteristics that run across that block.