Which of the following represent dependent samples.
i. Life spans of pairs of siblings.
ii. Life spans of randomly-selected pairs of people
iii. Life spans of pairs of mothers and daughters
A) i
B) i and iii
C) iii
D) i, ii, and iii

Question

Quizplus · Accepted Answer

Dependent samples are those in which the observations in one group are related to the observations in the other group. In this case, life spans of siblings can be related as they come from the same family and share genetic and environmental factors. Similarly, life spans of mothers and daughters may also be related due to the presence of shared genetic factors. However, life spans of randomly selected pairs of people may not be related and hence independent samples. Therefore, option B - i and iii - represents dependent samples.

Which of the Following Represent Dependent Samples