Final answer:
Somebody's home is described as having predictable certainty, while a restaurant is characterized as chaotic and uncertain. Both scenarios involve elements of material culture and patterns of action and speech, highlighting a common factor of shared ways of thinking.
Step-by-step explanation:
The situation described as having the element of predictable certainty is somebody's home. Based on our knowledge of the way of life in our society, we can predict certain patterns of action and speech that are characteristic of someone's home.
The situation characterized as chaotic and uncertain is a restaurant. The circumstances of eating in public can vary greatly and are subject to a range of unpredictable factors.
Despite their differences, both scenarios involve the combination of elements of material culture with patterns of action and speech. This highlights the common factor of shared ways of thinking about and making sense of these situations in our society.