DP Biology (first assessment 2025)

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Question 22M.2.SL.TZ2.d

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.SL.TZ2.d
Level SL Paper 2 Time zone TZ2
Command term Explain Question number d Adapted from N/A
d.
[Maximum mark: 1]
22M.2.SL.TZ2.d

When the data in the table were used to calculate chi-squared, the calculated value was 0.056. The critical value is 3.84. Explain the conclusion that can be drawn from the calculated and critical values for chi-squared.

[1]

Markscheme
  1. (when the calculated value is smaller than the critical value) there is no significant association between the two species / H0/null hypothesis accepted;
  2. it is random chance if both species are either present or absent in most quadrats;

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