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Information and IdeasHardInterpreting telescope survey data

Information and Ideas practice question

Supernova candidates identified, Meridian Sky Survey Year | By software | By volunteers (missed by software) | Software candidates confirmed by humans 2021 | 2,210 | 620 | 95% 2023 | 3,480 | 410 | 96% The survey's annual report notes that ____

Which choice most effectively uses data from the table to complete the statement?

  1. A. automated flagging now finds the large majority of candidates, yet volunteers still contribute hundreds of discoveries the software misses.Correct
  2. B. volunteers found more candidates than the software in the latest year.
  3. C. the software's candidates no longer require any human confirmation.
  4. D. the number of candidates found by volunteers has grown each year.

Answer: A. automated flagging now finds the large majority of candidates, yet volunteers still contribute hundreds of discoveries the software misses.

The table shows software finding 3,480 of roughly 3,900 candidates (the large majority) while volunteers add 410 the software missed — both halves of the statement.

Why the other answers are wrong

B. volunteers found more candidates than the software in the latest year.
Volunteers' 410 is far below the software's 3,480.
C. the software's candidates no longer require any human confirmation.
The table says 96% of software candidates passed human confirmation — confirmation still happens.
D. the number of candidates found by volunteers has grown each year.
Volunteer finds declined from 620 to 410 across the years shown.

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