6. a study of 33,043 infants in italy was con...
6. a study of 33,043 infants in italy was conducted to find a link between heart rhythm abnormality and sudden infant death syndrome.\n7. a survey of 2104 households in the united states found that 65% subscribe to cable television.\n8. write an example of a question that takes a sample from a population. explain how you know that the sample is smaller than the population.
Answer
# Explanation:
## Step1: Analyze problem 6
The study of 33,043 infants is a sample from the population of all infants. It aims to find a link between heart - rhythm abnormality and sudden infant death syndrome.
## Step2: Analyze problem 7
The survey of 2104 households is a sample from the population of all households in the United States. It found the percentage of households that subscribe to cable television.
## Step3: Answer problem 8
Question: A survey of 50 students in a school to find out the average number of hours they study per week. The population is all students in the school. Since there are likely more than 50 students in the school, the sample (50 students) is smaller than the population.
# Answer:
6. The 33,043 infants are a sample from the population of all infants.
7. The 2104 households are a sample from the population of all households in the US.
8. Question: A survey of 50 students in a school to find out the average number of hours they study per week. Explanation: The population is all students in the school. Since there are likely more than 50 students in the school, the sample is smaller.