Among 40 adults 20-25 years old questioned about stress levels, 16 responded they are more stressed now than last year”. 2. There were 18,000 new cases of female breast cancer in the state

Question 1
Classify the following variables and classify them as qualitative or Quantitative. If qualitative, state whether the variable is nominal or Dichotomous or ordinal? If quantitative, state whether the variable is discrete or continuous?
Variable Quantitative/ qualitative
Discrete/ or continuous/ or/Dichotomous/or
nominal /or ordinal
BMI (underweight, normal, overweight, Obese)
The number of days a child stricken with dengue stayed at the hospital
Presence of Type 2 diabetes (yes or no)
The length of time that a cancer patient survives after diagnosis
Number of COVID-19 cases per week
Type of fat (trans, monounsaturated, polysaturated)
Marital status (Single, married, divorced, widowed)
Daily rainfall (mm)
Stages of cancer (I, II, III, IV)
Fluoride concentration in drinking water
Question 2
1. For the scenario presented below, Identify a population and the sample:
“Among 40 adults 20-25 years old questioned about stress levels, 16 responded they are more stressed now than last year”.
2. There were 18,000 new cases of female breast cancer in the state of California in 2005. A study of 1225 of these cases finds that survival varied greatly by stage of diagnosis. The average 7 years survival rate for stage I breast cancer was 92%. For stage II breast cancer, the survival was 71%. For stage III breast cancer, the survival was 39%. For stage IV breast cancer, the survival was 11%.
Based on the information provided, identify whether each of the boldface numbers is a parameter or a statistic.
3. In a study, a researcher is interested to know how many children married couples from Suva have had. He/she selects a random sample of 250 couples from Suva and records the number of children in the family and the family income. Based on the information provided answer the following
a. What is the population of interest?
b. What is the sampling unit?
c. What is the variable(s) of interest?
4. What is a sampling frame? Give two examples.
5. What sampling frame one might be used to select a sample of 10 years old children living in the city?
6. In a survey, a researcher interviewed all the residents of a street. What sampling method he has used?