HW1: Fundamentals of Data: 1) What is wrong with the following statement? (5-pts
ID: 3041179 • Letter: H
Question
HW1: Fundamentals of Data: 1) What is wrong with the following statement? (5-pts) " The data is showing me that X is greater than Y" 2) If I go out and record the blood types of all incoming freshmen at UNR, the data I collect will be ‘Quantitative, or ‘Categorical? (5-pts) 3) I go out and record how fast 100 UNR math majors can run the 100m dash. How many cases do I have and what is my variable? (2-pts) Over what range are the values of my variable likely to be distributed? Note: there is room for humor here.(3-pts) What type of graph would we use to illustrate how the distribution might look (2pts)? What three things need to be on this graph (3-pts)? Sketch an informative graph illustrating how the distribution might look (5 pts) a. b. c. d. e.Explanation / Answer
as per Chegg policies, i am answering Q1 only.
2) the data will be categorical in nature as the variable of interest is blood type. blood type is measured on the nominal scale of measurement as it can be categorized as "A+" "B+" AB+" "O+" "A-" "B-" AB-" "O-"
7)
Suppose I want to measure the blood pressure of patients suffering from heart disease. in this sample, I expect that there will be very few observations with low blood pressure. as heart patients suffer from high blood pressure. does the distribution of blood pressure of patients suffering from heart disease is SKEWED to the left.
8)
Distribution will be said to be skewed to the right if there are very few observations with higher values. suppose I measure the GPA of students who are repeating their exam. then there will be a very few students with high GPA. hence the distribution of GPA of students who are repeating their exam is said to be skewed to the right
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