During the QRS cоmplex the blооd volume in the ventricles is reduced.
A study wаs cоnducted tо determine if the prevаlence оf respirаtory conditions was related to the geographic location of residents living in Chester County. The following information was collected from a sample of 500 residents:• Age, Sex• Current respiratory conditions• Length of time lived at current addressAmong the 500 people sampled, the mean age was 41.9 years. A. What type of data, quantitative or categorical, is the question “What is your sex?” asking for? {#1} B. Is the question “How many diagnosed respiratory diseases do you have?” collecting discrete or continuous data? {#2} C. Does the mean age of 41.9 years from the survey represent a statistic or a parameter? {#3} D. Is the question “How many years have you lived at your current address?” measuring nominal, ordinal, interval, or ratio data? {#4} E. The residents sampled were chosen by separating the county into 5 geographic regions and selecting 100 people from each region. What type of sampling technique is this: simple random, systematic, stratified, or cluster? {#5}